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types</a> + <a class="dropdown-item" href="../articles/data_generator.html">Data generator</a> + <a class="dropdown-item" href="../articles/using_tb.html">Using tensorboard</a> + <a class="dropdown-item" href="../articles/integrated_gradient.html">Integrated Gradient</a> + </div> +</li> + </ul> +<form class="form-inline my-2 my-lg-0" role="search"> + <input type="search" class="form-control me-sm-2" aria-label="Toggle navigation" name="search-input" data-search-index="../search.json" id="search-input" placeholder="Search for" autocomplete="off"> +</form> + + <ul class="navbar-nav"> +<li class="nav-item"> + <a class="external-link nav-link" href="https://github.com/GenomeNet/deepG/" aria-label="github"> + <span class="fab fa fab fa-github fa-lg"></span> + + </a> +</li> + </ul> +</div> + + + </div> +</nav><div class="container template-article"> + + + + +<div class="row"> + <main id="main" class="col-md-9"><div class="page-header"> + <img src="../logo.png" class="logo" alt=""><h1>Getting started</h1> + + + <small class="dont-index">Source: <a href="https://github.com/GenomeNet/deepG/blob/HEAD/vignettes/getting_started.Rmd" class="external-link"><code>vignettes/getting_started.Rmd</code></a></small> + <div class="d-none name"><code>getting_started.Rmd</code></div> + </div> + + + +<div class="sourceCode" id="cb1"><pre class="downlit sourceCode r"> +<code class="sourceCode R"><span><span class="co">#devtools::install_github("GenomeNet/deepG")</span></span> +<span><span class="kw"><a href="https://rdrr.io/r/base/library.html" class="external-link">library</a></span><span class="op">(</span><span class="va"><a href="https://github.com/GenomeNet/deepG" class="external-link">deepG</a></span><span class="op">)</span></span> +<span><span class="kw"><a href="https://rdrr.io/r/base/library.html" class="external-link">library</a></span><span class="op">(</span><span class="va"><a href="https://magrittr.tidyverse.org" class="external-link">magrittr</a></span><span class="op">)</span></span></code></pre></div> +<style type="text/css"> +mark.in { + background-color: CornflowerBlue; +} + +mark.out { + background-color: IndianRed; +} + +</style> +<div class="section level2"> +<h2 id="introduction">Introduction<a class="anchor" aria-label="anchor" href="#introduction"></a> +</h2> +<p>The goal of the deepG package is to speed up the development of +bioinformatical tools for sequence classification, homology detection +and other bioinformatical tasks. The package offers several functions +for</p> +<ul> +<li>Data (pre-) processing</li> +<li>Deep learning architectures</li> +<li>Model training</li> +<li>Model evaluation</li> +<li>Visualizing training progress</li> +</ul> +<div class="section level3"> +<h3 id="create-dummy-data">Create dummy data<a class="anchor" aria-label="anchor" href="#create-dummy-data"></a> +</h3> +<p>We create two simple dummy training and validation data sets. Both +consist of random <tt>ACGT</tt> sequences but the first category has a +probability of 40% each for drawing <tt>G</tt> or <tt>C</tt> and the +second has equal probability for each nucleotide (first category has +around 80% <tt>GC</tt> content and second one around 50%).</p> +<div class="sourceCode" id="cb2"><pre class="downlit sourceCode r"> +<code class="sourceCode R"><span><span class="fu"><a href="https://rdrr.io/r/base/Random.html" class="external-link">set.seed</a></span><span class="op">(</span><span class="fl">123</span><span class="op">)</span></span> +<span><span class="va">vocabulary</span> <span class="op"><-</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="st">"A"</span>, <span class="st">"C"</span>, <span class="st">"G"</span>, <span class="st">"T"</span><span class="op">)</span></span> +<span></span> +<span><span class="va">data_type</span> <span class="op"><-</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="st">"train_1"</span>, <span class="st">"train_2"</span>, <span class="st">"val_1"</span>, <span class="st">"val_2"</span><span class="op">)</span></span> +<span></span> +<span><span class="kw">for</span> <span class="op">(</span><span class="va">i</span> <span class="kw">in</span> <span class="fl">1</span><span class="op">:</span><span class="fu"><a href="https://rdrr.io/r/base/length.html" class="external-link">length</a></span><span class="op">(</span><span class="va">data_type</span><span class="op">)</span><span class="op">)</span> <span class="op">{</span></span> +<span> </span> +<span> <span class="va">temp_file</span> <span class="op"><-</span> <span class="fu"><a href="https://rdrr.io/r/base/tempfile.html" class="external-link">tempfile</a></span><span class="op">(</span><span class="op">)</span></span> +<span> <span class="fu"><a href="https://rdrr.io/r/base/assign.html" class="external-link">assign</a></span><span class="op">(</span><span class="fu"><a href="https://rdrr.io/r/base/paste.html" class="external-link">paste0</a></span><span class="op">(</span><span class="va">data_type</span><span class="op">[</span><span class="va">i</span><span class="op">]</span>, <span class="st">"_dir"</span><span class="op">)</span>, <span class="va">temp_file</span><span class="op">)</span></span> +<span> <span class="fu"><a href="https://rdrr.io/r/base/files2.html" class="external-link">dir.create</a></span><span class="op">(</span><span class="va">temp_file</span><span class="op">)</span></span> +<span> </span> +<span> <span class="kw">if</span> <span class="op">(</span><span class="va">i</span> <span class="op"><a href="https://rdrr.io/r/base/Arithmetic.html" class="external-link">%%</a></span> <span class="fl">2</span> <span class="op">==</span> <span class="fl">1</span><span class="op">)</span> <span class="op">{</span></span> +<span> <span class="va">header</span> <span class="op"><-</span> <span class="st">"high_gc"</span></span> +<span> <span class="va">prob</span> <span class="op"><-</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="fl">0.1</span>, <span class="fl">0.4</span>, <span class="fl">0.4</span>, <span class="fl">0.1</span><span class="op">)</span></span> +<span> <span class="op">}</span> <span class="kw">else</span> <span class="op">{</span></span> +<span> <span class="va">header</span> <span class="op"><-</span> <span class="st">"equal_dist"</span></span> +<span> <span class="va">prob</span> <span class="op"><-</span> <span class="fu"><a href="https://rdrr.io/r/base/rep.html" class="external-link">rep</a></span><span class="op">(</span><span class="fl">0.25</span>, <span class="fl">4</span><span class="op">)</span></span> +<span> <span class="op">}</span></span> +<span> </span> +<span> <span class="va">fasta_name_start</span> <span class="op"><-</span> <span class="fu"><a href="https://rdrr.io/r/base/paste.html" class="external-link">paste0</a></span><span class="op">(</span><span class="va">header</span>, <span class="st">"_"</span>, <span class="va">data_type</span><span class="op">[</span><span class="va">i</span><span class="op">]</span>, <span class="st">"file"</span><span class="op">)</span></span> +<span> </span> +<span> <span class="fu"><a href="../reference/create_dummy_data.html">create_dummy_data</a></span><span class="op">(</span>file_path <span class="op">=</span> <span class="va">temp_file</span>,</span> +<span> num_files <span class="op">=</span> <span class="fl">1</span>,</span> +<span> seq_length <span class="op">=</span> <span class="fl">10000</span>, </span> +<span> num_seq <span class="op">=</span> <span class="fl">1</span>,</span> +<span> header <span class="op">=</span> <span class="va">header</span>,</span> +<span> prob <span class="op">=</span> <span class="va">prob</span>,</span> +<span> fasta_name_start <span class="op">=</span> <span class="va">fasta_name_start</span>,</span> +<span> vocabulary <span class="op">=</span> <span class="va">vocabulary</span><span class="op">)</span></span> +<span> </span> +<span><span class="op">}</span></span></code></pre></div> +</div> +<div class="section level3"> +<h3 id="training">Training<a class="anchor" aria-label="anchor" href="#training"></a> +</h3> +<p>We can now train a model that can differentiate between the two +categories. First, we can create our network architecture. We take an +input size of 50 nucleotides. The model has one lstm layer with 16 cells +and two dense layers with 8 and 2 neurons.</p> +<div class="sourceCode" id="cb3"><pre class="downlit sourceCode r"> +<code class="sourceCode R"><span><span class="va">maxlen</span> <span class="op"><-</span> <span class="fl">50</span></span> +<span><span class="va">model</span> <span class="op"><-</span> <span class="fu"><a href="../reference/create_model_lstm_cnn.html">create_model_lstm_cnn</a></span><span class="op">(</span>maxlen <span class="op">=</span> <span class="va">maxlen</span>,</span> +<span> layer_lstm <span class="op">=</span> <span class="fl">16</span>,</span> +<span> layer_dense <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="fl">8</span>, <span class="fl">2</span><span class="op">)</span><span class="op">)</span></span></code></pre></div> +<pre><code><span><span class="co">## Model: "model"</span></span> +<span><span class="co">## _________________________________________________________________</span></span> +<span><span class="co">## Layer (type) Output Shape Param # </span></span> +<span><span class="co">## =================================================================</span></span> +<span><span class="co">## input_1 (InputLayer) [(None, 50, 4)] 0 </span></span> +<span><span class="co">## </span></span> +<span><span class="co">## lstm (LSTM) (None, 16) 1344 </span></span> +<span><span class="co">## </span></span> +<span><span class="co">## dense (Dense) (None, 8) 136 </span></span> +<span><span class="co">## </span></span> +<span><span class="co">## dense_1 (Dense) (None, 2) 18 </span></span> +<span><span class="co">## </span></span> +<span><span class="co">## =================================================================</span></span> +<span><span class="co">## Total params: 1498 (5.85 KB)</span></span> +<span><span class="co">## Trainable params: 1498 (5.85 KB)</span></span> +<span><span class="co">## Non-trainable params: 0 (0.00 Byte)</span></span> +<span><span class="co">## _________________________________________________________________</span></span></code></pre> +<p>Next we can train the model using the <code>train_model</code> +function. Function will internally build a data generator for +training.</p> +<div class="sourceCode" id="cb5"><pre class="downlit sourceCode r"> +<code class="sourceCode R"><span><span class="va">hist</span> <span class="op"><-</span> <span class="fu"><a href="../reference/train_model.html">train_model</a></span><span class="op">(</span><span class="va">model</span>,</span> +<span> train_type <span class="op">=</span> <span class="st">"label_folder"</span>,</span> +<span> run_name <span class="op">=</span> <span class="st">"gc_model_1"</span>,</span> +<span> path <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="va">train_1_dir</span>, <span class="va">train_2_dir</span><span class="op">)</span>,</span> +<span> path_val <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="va">val_1_dir</span>, <span class="va">val_2_dir</span><span class="op">)</span>,</span> +<span> epochs <span class="op">=</span> <span class="fl">4</span>,</span> +<span> steps_per_epoch <span class="op">=</span> <span class="fl">25</span>, <span class="co"># one epoch = 25 batches</span></span> +<span> batch_size <span class="op">=</span> <span class="fl">64</span>,</span> +<span> step <span class="op">=</span> <span class="fl">50</span>, <span class="co"># take a sample every 50 nt</span></span> +<span> vocabulary_label <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="st">"high_gc"</span>, <span class="st">"equal_dist"</span><span class="op">)</span><span class="op">)</span></span></code></pre></div> +<pre><code><span><span class="co">## Epoch 1/4</span></span> +<span><span class="co">## 1/25 [>.............................] - ETA: 21s - loss: 0.7058 - acc: 0.5938 4/25 [===>..........................] - ETA: 0s - loss: 0.7028 - acc: 0.5430 7/25 [=======>......................] - ETA: 0s - loss: 0.7013 - acc: 0.533510/25 [===========>..................] - ETA: 0s - loss: 0.6976 - acc: 0.539114/25 [===============>..............] - ETA: 0s - loss: 0.6935 - acc: 0.559217/25 [===================>..........] - ETA: 0s - loss: 0.6900 - acc: 0.577221/25 [========================>.....] - ETA: 0s - loss: 0.6860 - acc: 0.607124/25 [===========================>..] - ETA: 0s - loss: 0.6821 - acc: 0.624325/25 [==============================] - 2s 31ms/step - loss: 0.6813 - acc: 0.6256 - val_loss: 0.6511 - val_acc: 0.7563 - lr: 0.0010</span></span> +<span><span class="co">## Epoch 2/4</span></span> +<span><span class="co">## 1/25 [>.............................] - ETA: 0s - loss: 0.6379 - acc: 0.8281 4/25 [===>..........................] - ETA: 0s - loss: 0.6423 - acc: 0.7617 8/25 [========>.....................] - ETA: 0s - loss: 0.6340 - acc: 0.785212/25 [=============>................] - ETA: 0s - loss: 0.6228 - acc: 0.789116/25 [==================>...........] - ETA: 0s - loss: 0.6086 - acc: 0.805720/25 [=======================>......] - ETA: 0s - loss: 0.5892 - acc: 0.825824/25 [===========================>..] - ETA: 0s - loss: 0.5650 - acc: 0.850925/25 [==============================] - 1s 21ms/step - loss: 0.5590 - acc: 0.8556 - val_loss: 0.3910 - val_acc: 0.9719 - lr: 0.0010</span></span> +<span><span class="co">## Epoch 3/4</span></span> +<span><span class="co">## 1/25 [>.............................] - ETA: 0s - loss: 0.3548 - acc: 1.0000 4/25 [===>..........................] - ETA: 0s - loss: 0.3463 - acc: 0.9883 8/25 [========>.....................] - ETA: 0s - loss: 0.3230 - acc: 0.976611/25 [============>.................] - ETA: 0s - loss: 0.3052 - acc: 0.975915/25 [=================>............] - ETA: 0s - loss: 0.2893 - acc: 0.970817/25 [===================>..........] - ETA: 0s - loss: 0.2792 - acc: 0.970621/25 [========================>.....] - ETA: 0s - loss: 0.2665 - acc: 0.969524/25 [===========================>..] - ETA: 0s - loss: 0.2547 - acc: 0.971425/25 [==============================] - 1s 21ms/step - loss: 0.2533 - acc: 0.9706 - val_loss: 0.1765 - val_acc: 0.9719 - lr: 0.0010</span></span> +<span><span class="co">## Epoch 4/4</span></span> +<span><span class="co">## 1/25 [>.............................] - ETA: 0s - loss: 0.1369 - acc: 1.0000 4/25 [===>..........................] - ETA: 0s - loss: 0.1456 - acc: 0.9922 7/25 [=======>......................] - ETA: 0s - loss: 0.1494 - acc: 0.986610/25 [===========>..................] - ETA: 0s - loss: 0.1425 - acc: 0.987514/25 [===============>..............] - ETA: 0s - loss: 0.1376 - acc: 0.986617/25 [===================>..........] - ETA: 0s - loss: 0.1315 - acc: 0.987121/25 [========================>.....] - ETA: 0s - loss: 0.1259 - acc: 0.986625/25 [==============================] - ETA: 0s - loss: 0.1225 - acc: 0.985025/25 [==============================] - 1s 21ms/step - loss: 0.1225 - acc: 0.9850 - val_loss: 0.0992 - val_acc: 0.9812 - lr: 0.0010</span></span></code></pre> +<pre><code><span><span class="co">## Training done.</span></span></code></pre> +<div class="sourceCode" id="cb8"><pre class="downlit sourceCode r"> +<code class="sourceCode R"><span><span class="fu"><a href="https://rdrr.io/r/graphics/plot.default.html" class="external-link">plot</a></span><span class="op">(</span><span class="va">hist</span><span class="op">)</span></span></code></pre></div> +<p><img src="getting_started_files/figure-html/unnamed-chunk-7-1.png" width="700"></p> +</div> +<div class="section level3"> +<h3 id="evaluation">Evaluation<a class="anchor" aria-label="anchor" href="#evaluation"></a> +</h3> +<p>We can now evaluate the trained model on all the validation data</p> +<div class="sourceCode" id="cb9"><pre class="downlit sourceCode r"> +<code class="sourceCode R"><span><span class="va">eval</span> <span class="op"><-</span> <span class="fu"><a href="../reference/evaluate_model.html">evaluate_model</a></span><span class="op">(</span>path_input <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="va">val_1_dir</span>, <span class="va">val_2_dir</span><span class="op">)</span>,</span> +<span> model <span class="op">=</span> <span class="va">model</span>,</span> +<span> batch_size <span class="op">=</span> <span class="fl">100</span>,</span> +<span> step <span class="op">=</span> <span class="fl">25</span>, <span class="co"># take a sample every 25 nt </span></span> +<span> vocabulary_label <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/list.html" class="external-link">list</a></span><span class="op">(</span><span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="st">"high_gc"</span>, <span class="st">"equal_dist"</span><span class="op">)</span><span class="op">)</span>,</span> +<span> mode <span class="op">=</span> <span class="st">"label_folder"</span>,</span> +<span> evaluate_all_files <span class="op">=</span> <span class="cn">TRUE</span>,</span> +<span> verbose <span class="op">=</span> <span class="cn">FALSE</span>,</span> +<span> auc <span class="op">=</span> <span class="cn">TRUE</span>,</span> +<span> auprc <span class="op">=</span> <span class="cn">TRUE</span><span class="op">)</span></span></code></pre></div> +<pre><code><span><span class="co">## Evaluate 399 samples for class high_gc.</span></span> +<span><span class="co">## Evaluate 399 samples for class equal_dist.</span></span></code></pre> +<div class="sourceCode" id="cb11"><pre class="downlit sourceCode r"> +<code class="sourceCode R"><span><span class="va">eval</span></span></code></pre></div> +<pre><code><span><span class="co">## [[1]]</span></span> +<span><span class="co">## [[1]]$confusion_matrix</span></span> +<span><span class="co">## Truth</span></span> +<span><span class="co">## Prediction high_gc equal_dist</span></span> +<span><span class="co">## high_gc 383 5</span></span> +<span><span class="co">## equal_dist 16 394</span></span> +<span><span class="co">## </span></span> +<span><span class="co">## [[1]]$accuracy</span></span> +<span><span class="co">## [1] 0.9736842</span></span> +<span><span class="co">## </span></span> +<span><span class="co">## [[1]]$categorical_crossentropy_loss</span></span> +<span><span class="co">## [1] 0.1157783</span></span> +<span><span class="co">## </span></span> +<span><span class="co">## [[1]]$AUC</span></span> +<span><span class="co">## [1] 0.9968593</span></span> +<span><span class="co">## </span></span> +<span><span class="co">## [[1]]$AUPRC</span></span> +<span><span class="co">## [1] 0.9968503</span></span></code></pre> +<p>We can check where our model made mistakes for the sequence with high +GC content.</p> +<div class="sourceCode" id="cb13"><pre class="downlit sourceCode r"> +<code class="sourceCode R"><span><span class="va">high_gc_file</span> <span class="op"><-</span> <span class="fu">microseq</span><span class="fu">::</span><span class="fu"><a href="https://rdrr.io/pkg/microseq/man/readFasta.html" class="external-link">readFasta</a></span><span class="op">(</span><span class="fu"><a href="https://rdrr.io/r/base/list.files.html" class="external-link">list.files</a></span><span class="op">(</span><span class="va">val_1_dir</span>, full.names <span class="op">=</span> <span class="cn">TRUE</span><span class="op">)</span><span class="op">[</span><span class="fl">1</span><span class="op">]</span><span class="op">)</span></span> +<span><span class="va">high_gc_seq</span> <span class="op"><-</span> <span class="va">high_gc_file</span><span class="op">$</span><span class="va">Sequence</span></span> +<span></span> +<span><span class="va">pred_high_gc</span> <span class="op"><-</span> <span class="fu"><a href="../reference/predict_model.html">predict_model</a></span><span class="op">(</span>model <span class="op">=</span> <span class="va">model</span>, </span> +<span> sequence <span class="op">=</span> <span class="va">high_gc_seq</span>,</span> +<span> filename <span class="op">=</span> <span class="cn">NULL</span>, </span> +<span> step <span class="op">=</span> <span class="fl">25</span>,</span> +<span> batch_size <span class="op">=</span> <span class="fl">512</span>,</span> +<span> verbose <span class="op">=</span> <span class="cn">TRUE</span>,</span> +<span> return_states <span class="op">=</span> <span class="cn">TRUE</span>,</span> +<span> mode <span class="op">=</span> <span class="st">"label"</span><span class="op">)</span></span></code></pre></div> +<pre><code><span><span class="co">## layer_name not specified. Using layer dense_1</span></span></code></pre> +<pre><code><span><span class="co">## Computing output for model at layer dense_1 </span></span> +<span><span class="co">## Model: "model_1"</span></span> +<span><span class="co">## ________________________________________________________________________________</span></span> +<span><span class="co">## Layer (type) Output Shape Param # </span></span> +<span><span class="co">## ================================================================================</span></span> +<span><span class="co">## input_1 (InputLayer) [(None, 50, 4)] 0 </span></span> +<span><span class="co">## lstm (LSTM) (None, 16) 1344 </span></span> +<span><span class="co">## dense (Dense) (None, 8) 136 </span></span> +<span><span class="co">## dense_1 (Dense) (None, 2) 18 </span></span> +<span><span class="co">## ================================================================================</span></span> +<span><span class="co">## Total params: 1498 (5.85 KB)</span></span> +<span><span class="co">## Trainable params: 1498 (5.85 KB)</span></span> +<span><span class="co">## Non-trainable params: 0 (0.00 Byte)</span></span> +<span><span class="co">## ________________________________________________________________________________</span></span></code></pre> +<div class="sourceCode" id="cb16"><pre class="downlit sourceCode r"> +<code class="sourceCode R"><span><span class="va">pred_df</span> <span class="op"><-</span> <span class="fu"><a href="https://rdrr.io/r/base/cbind.html" class="external-link">cbind</a></span><span class="op">(</span><span class="va">pred_high_gc</span><span class="op">$</span><span class="va">states</span>, <span class="va">pred_high_gc</span><span class="op">$</span><span class="va">sample_end_position</span><span class="op">)</span> <span class="op"><a href="../reference/pipe.html">%>%</a></span> </span> +<span> <span class="fu"><a href="https://rdrr.io/r/base/as.data.frame.html" class="external-link">as.data.frame</a></span><span class="op">(</span><span class="op">)</span></span> +<span><span class="fu"><a href="https://rdrr.io/r/base/names.html" class="external-link">names</a></span><span class="op">(</span><span class="va">pred_df</span><span class="op">)</span> <span class="op"><-</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="st">"high_gc_conf"</span>, <span class="st">"equal_dist_conf"</span>, <span class="st">"sample_end_position"</span><span class="op">)</span></span> +<span><span class="fu"><a href="https://rdrr.io/r/utils/head.html" class="external-link">head</a></span><span class="op">(</span><span class="va">pred_df</span><span class="op">)</span></span></code></pre></div> +<pre><code><span><span class="co">## high_gc_conf equal_dist_conf sample_end_position</span></span> +<span><span class="co">## 1 0.9330443 0.06695572 50</span></span> +<span><span class="co">## 2 0.9602452 0.03975480 75</span></span> +<span><span class="co">## 3 0.9642879 0.03571207 100</span></span> +<span><span class="co">## 4 0.9596730 0.04032708 125</span></span> +<span><span class="co">## 5 0.9617251 0.03827484 150</span></span> +<span><span class="co">## 6 0.9666333 0.03336672 175</span></span></code></pre> +<div class="sourceCode" id="cb18"><pre class="downlit sourceCode r"> +<code class="sourceCode R"><span><span class="va">wrong_pred</span> <span class="op"><-</span> <span class="va">pred_df</span> <span class="op"><a href="../reference/pipe.html">%>%</a></span> <span class="fu">dplyr</span><span class="fu">::</span><span class="fu"><a href="https://dplyr.tidyverse.org/reference/filter.html" class="external-link">filter</a></span><span class="op">(</span><span class="va">high_gc_conf</span> <span class="op"><</span> <span class="fl">0.5</span><span class="op">)</span></span> +<span><span class="va">wrong_pred</span></span></code></pre></div> +<pre><code><span><span class="co">## high_gc_conf equal_dist_conf sample_end_position</span></span> +<span><span class="co">## 1 0.13769490 0.8623052 675</span></span> +<span><span class="co">## 2 0.08829107 0.9117089 800</span></span> +<span><span class="co">## 3 0.15268661 0.8473134 1150</span></span> +<span><span class="co">## 4 0.10348237 0.8965176 1475</span></span> +<span><span class="co">## 5 0.10325063 0.8967494 1950</span></span> +<span><span class="co">## 6 0.08819685 0.9118031 2700</span></span> +<span><span class="co">## 7 0.08648270 0.9135173 3000</span></span> +<span><span class="co">## 8 0.08025692 0.9197431 3700</span></span> +<span><span class="co">## 9 0.10362279 0.8963772 4675</span></span> +<span><span class="co">## 10 0.21332431 0.7866758 7550</span></span> +<span><span class="co">## 11 0.14129026 0.8587097 7875</span></span> +<span><span class="co">## 12 0.37184438 0.6281556 8200</span></span> +<span><span class="co">## 13 0.07818010 0.9218199 8225</span></span> +<span><span class="co">## 14 0.24804193 0.7519581 8425</span></span> +<span><span class="co">## 15 0.30556497 0.6944351 9900</span></span> +<span><span class="co">## 16 0.10370088 0.8962991 9925</span></span></code></pre> +<div class="sourceCode" id="cb20"><pre class="downlit sourceCode r"> +<code class="sourceCode R"><span><span class="kw">if</span> <span class="op">(</span><span class="fu"><a href="https://rdrr.io/r/base/nrow.html" class="external-link">nrow</a></span><span class="op">(</span><span class="va">wrong_pred</span><span class="op">)</span> <span class="op">==</span> <span class="fl">0</span><span class="op">)</span> <span class="op">{</span></span> +<span> <span class="fu"><a href="https://rdrr.io/r/base/print.html" class="external-link">print</a></span><span class="op">(</span><span class="st">"All predictions for high GC content class correct"</span><span class="op">)</span></span> +<span><span class="op">}</span> <span class="kw">else</span> <span class="op">{</span></span> +<span> </span> +<span> <span class="co"># extract samples where model was wrong</span></span> +<span> <span class="va">wrong_pred_seq</span> <span class="op"><-</span> <span class="fu"><a href="https://rdrr.io/r/base/vector.html" class="external-link">vector</a></span><span class="op">(</span><span class="st">"character"</span>, <span class="fu"><a href="https://rdrr.io/r/base/nrow.html" class="external-link">nrow</a></span><span class="op">(</span><span class="va">wrong_pred</span><span class="op">)</span><span class="op">)</span></span> +<span> <span class="kw">for</span> <span class="op">(</span><span class="va">i</span> <span class="kw">in</span> <span class="fl">1</span><span class="op">:</span><span class="fu"><a href="https://rdrr.io/r/base/length.html" class="external-link">length</a></span><span class="op">(</span><span class="va">wrong_pred_seq</span><span class="op">)</span><span class="op">)</span> <span class="op">{</span></span> +<span> <span class="va">sample_end</span> <span class="op"><-</span> <span class="va">wrong_pred</span><span class="op">$</span><span class="va">sample_end_position</span><span class="op">[</span><span class="va">i</span><span class="op">]</span></span> +<span> <span class="va">sample_start</span> <span class="op"><-</span> <span class="va">sample_end</span> <span class="op">-</span> <span class="va">maxlen</span> <span class="op">+</span> <span class="fl">1</span></span> +<span> <span class="va">wrong_pred_seq</span><span class="op">[</span><span class="va">i</span><span class="op">]</span> <span class="op"><-</span> <span class="fu"><a href="https://rdrr.io/r/base/substr.html" class="external-link">substr</a></span><span class="op">(</span><span class="va">high_gc_seq</span>, <span class="va">sample_start</span>, <span class="va">sample_end</span><span class="op">)</span></span> +<span> <span class="op">}</span></span> +<span> </span> +<span> <span class="va">wrong_pred_seq</span></span> +<span><span class="op">}</span></span></code></pre></div> +<pre><code><span><span class="co">## [1] "CTTAGAGACCTCGCCGCCACCGCCCGAGGTTCCGCTCCGGCGTCCCGCGG"</span></span> +<span><span class="co">## [2] "CCCACTTCGTGTCTATGCCGGACACGCCTCGATAGGCGCAGGCGATGGGC"</span></span> +<span><span class="co">## [3] "ACAGGAGAGACCCTCGGTTGCCGGCGACGCCGTGTCGTTGGTAGGCCCAC"</span></span> +<span><span class="co">## [4] "GATAGCTCCACACCCACCTCAGCGTCCCGGGCCGCCGGCGTTCCGCCTGC"</span></span> +<span><span class="co">## [5] "GCCCAACAAGGACGGTGAACTCCCCCGGGTACGGAAGAGGGTATGGCCGC"</span></span> +<span><span class="co">## [6] "AGGAGTCCTCCTAGAGCTCATGGGTTGAGACGTGCCTCGACGCCCGACCT"</span></span> +<span><span class="co">## [7] "CCCATTAGACCGTCCTGGCGGACACCCGTACGGGTGAGACCCTCCGGGTC"</span></span> +<span><span class="co">## [8] "TGCTTATCATGGCCGCCCTGATGACGTGTCAGGGGGAGGACTGAGCGGGG"</span></span> +<span><span class="co">## [9] "ATCCCGCATTCGCCGACGTCTCCACAGGAGGATCAGCGGGTCCGGGGCGA"</span></span> +<span><span class="co">## [10] "TTTGCGCCCCCTAAGGCACAGCCGCGACCCCAGGTTGGGAACCGCCGAAC"</span></span> +<span><span class="co">## [11] "CTACGGAACGTGGCTCCGAGCATCGGCGCATCGGCATGTGTCTGCCGGCG"</span></span> +<span><span class="co">## [12] "GTCGGGCGGAGCGCCACCACCGAGGGGCGGGCCCTTCAATTCTATAAGCG"</span></span> +<span><span class="co">## [13] "GGCGGGCCCTTCAATTCTATAAGCGACGCCGCCCTTGTCTGACGCTGGGC"</span></span> +<span><span class="co">## [14] "CACCCTATGTAGCCCCCTGCCTCGCCGGCCAGCCTGGGCTGATCGGGGCC"</span></span> +<span><span class="co">## [15] "TGGCCGTCGCGCTCCGGAGCCGTCACACCGGCGTACCTGTTATAAAGTCG"</span></span> +<span><span class="co">## [16] "CACCGGCGTACCTGTTATAAAGTCGCCCGCGCTCCCCCGGGCGCACCACG"</span></span></code></pre> +<p>We can check the nucleotide distribution of those sequences</p> +<div class="sourceCode" id="cb22"><pre class="downlit sourceCode r"> +<code class="sourceCode R"><span><span class="va">l</span> <span class="op"><-</span> <span class="fu"><a href="https://rdrr.io/r/base/list.html" class="external-link">list</a></span><span class="op">(</span><span class="op">)</span></span> +<span><span class="kw">for</span> <span class="op">(</span><span class="va">i</span> <span class="kw">in</span> <span class="fl">1</span><span class="op">:</span><span class="fu"><a href="https://rdrr.io/r/base/length.html" class="external-link">length</a></span><span class="op">(</span><span class="va">wrong_pred_seq</span><span class="op">)</span><span class="op">)</span> <span class="op">{</span></span> +<span> <span class="va">l</span><span class="op">[[</span><span class="va">i</span><span class="op">]</span><span class="op">]</span> <span class="op"><-</span> <span class="fu">stringr</span><span class="fu">::</span><span class="fu"><a href="https://stringr.tidyverse.org/reference/str_split.html" class="external-link">str_split</a></span><span class="op">(</span><span class="va">wrong_pred_seq</span><span class="op">[</span><span class="va">i</span><span class="op">]</span>, <span class="st">""</span><span class="op">)</span> <span class="op"><a href="../reference/pipe.html">%>%</a></span> <span class="fu"><a href="https://rdrr.io/r/base/table.html" class="external-link">table</a></span><span class="op">(</span><span class="op">)</span> <span class="op"><a href="../reference/pipe.html">%>%</a></span> <span class="fu"><a href="https://rdrr.io/r/base/proportions.html" class="external-link">prop.table</a></span><span class="op">(</span><span class="op">)</span> <span class="op"><a href="../reference/pipe.html">%>%</a></span> <span class="fu"><a href="https://rdrr.io/r/base/t.html" class="external-link">t</a></span><span class="op">(</span><span class="op">)</span> <span class="op"><a href="../reference/pipe.html">%>%</a></span> <span class="fu"><a href="https://rdrr.io/r/base/matrix.html" class="external-link">as.matrix</a></span><span class="op">(</span><span class="op">)</span></span> +<span><span class="op">}</span></span> +<span><span class="va">dist_matrix</span> <span class="op"><-</span> <span class="fu"><a href="https://rdrr.io/r/base/do.call.html" class="external-link">do.call</a></span><span class="op">(</span><span class="va">rbind</span>, <span class="va">l</span><span class="op">)</span></span> +<span><span class="va">dist_matrix</span></span></code></pre></div> +<pre><code><span><span class="co">## A C G T</span></span> +<span><span class="co">## [1,] 0.10 0.46 0.30 0.14</span></span> +<span><span class="co">## [2,] 0.16 0.34 0.32 0.18</span></span> +<span><span class="co">## [3,] 0.16 0.32 0.36 0.16</span></span> +<span><span class="co">## [4,] 0.12 0.48 0.26 0.14</span></span> +<span><span class="co">## [5,] 0.24 0.30 0.36 0.10</span></span> +<span><span class="co">## [6,] 0.18 0.32 0.30 0.20</span></span> +<span><span class="co">## [7,] 0.16 0.38 0.30 0.16</span></span> +<span><span class="co">## [8,] 0.16 0.22 0.42 0.20</span></span> +<span><span class="co">## [9,] 0.18 0.34 0.34 0.14</span></span> +<span><span class="co">## [10,] 0.20 0.40 0.28 0.12</span></span> +<span><span class="co">## [11,] 0.14 0.32 0.36 0.18</span></span> +<span><span class="co">## [12,] 0.18 0.32 0.36 0.14</span></span> +<span><span class="co">## [13,] 0.14 0.34 0.30 0.22</span></span> +<span><span class="co">## [14,] 0.10 0.44 0.30 0.16</span></span> +<span><span class="co">## [15,] 0.16 0.34 0.30 0.20</span></span> +<span><span class="co">## [16,] 0.16 0.44 0.26 0.14</span></span></code></pre> +<div class="sourceCode" id="cb24"><pre class="downlit sourceCode r"> +<code class="sourceCode R"><span><span class="va">df</span> <span class="op"><-</span> <span class="fu"><a href="https://rdrr.io/r/base/data.frame.html" class="external-link">data.frame</a></span><span class="op">(</span>distribution <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/vector.html" class="external-link">as.vector</a></span><span class="op">(</span><span class="va">dist_matrix</span><span class="op">)</span>,</span> +<span> nt <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/factor.html" class="external-link">factor</a></span><span class="op">(</span><span class="fu"><a href="https://rdrr.io/r/base/rep.html" class="external-link">rep</a></span><span class="op">(</span><span class="va">vocabulary</span>, each <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/nrow.html" class="external-link">nrow</a></span><span class="op">(</span><span class="va">dist_matrix</span><span class="op">)</span><span class="op">)</span><span class="op">)</span>,</span> +<span> sample_id <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/rep.html" class="external-link">rep</a></span><span class="op">(</span><span class="fl">1</span><span class="op">:</span><span class="fu"><a href="https://rdrr.io/r/base/nrow.html" class="external-link">nrow</a></span><span class="op">(</span><span class="va">dist_matrix</span><span class="op">)</span>, <span class="fl">4</span><span class="op">)</span><span class="op">)</span></span> +<span></span> +<span><span class="fu">ggplot</span><span class="op">(</span><span class="va">df</span>, <span class="fu">aes</span><span class="op">(</span>fill<span class="op">=</span><span class="va">nt</span>, y<span class="op">=</span><span class="va">distribution</span>, x<span class="op">=</span><span class="va">nt</span><span class="op">)</span><span class="op">)</span> <span class="op">+</span> </span> +<span> <span class="fu">geom_bar</span><span class="op">(</span>position<span class="op">=</span><span class="st">"dodge"</span>, stat<span class="op">=</span><span class="st">"identity"</span><span class="op">)</span> <span class="op">+</span> <span class="fu">facet_wrap</span><span class="op">(</span><span class="op">~</span><span class="va">sample_id</span><span class="op">)</span></span></code></pre></div> +<p><img src="getting_started_files/figure-html/unnamed-chunk-10-1.png" width="700"></p> +<p>Finally, we may want to aggregate all predictions, we made for the +sequence. We can do this using the <code>summarize_states</code> +function. The function returns the mean confidence, the maximum +prediction and the vote percentages (percentage of predictions per +class).</p> +<div class="sourceCode" id="cb25"><pre class="downlit sourceCode r"> +<code class="sourceCode R"><span><span class="va">label_names</span> <span class="op"><-</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="st">"high_gc"</span>, <span class="st">"equal_dist"</span><span class="op">)</span></span> +<span><span class="va">pred_summary</span> <span class="op"><-</span> <span class="fu"><a href="../reference/summarize_states.html">summarize_states</a></span><span class="op">(</span>label_names <span class="op">=</span> <span class="va">label_names</span>, df <span class="op">=</span> <span class="va">pred_df</span><span class="op">[</span>, <span class="fl">1</span><span class="op">:</span><span class="fl">2</span><span class="op">]</span><span class="op">)</span></span> +<span><span class="fu"><a href="https://rdrr.io/r/base/print.html" class="external-link">print</a></span><span class="op">(</span><span class="va">pred_summary</span><span class="op">)</span></span></code></pre></div> +<pre><code><span><span class="co">## file_name mean_conf_high_gc mean_conf_equal_dist max_conf_high_gc</span></span> +<span><span class="co">## <lgcl> <num> <num> <num></span></span> +<span><span class="co">## 1: NA 0.9148641 0.08513589 0.9714182</span></span> +<span><span class="co">## max_conf_equal_dist vote_perc_high_gc vote_perc_equal_dist mean_prediction</span></span> +<span><span class="co">## <num> <num> <num> <char></span></span> +<span><span class="co">## 1: 0.9218199 0.9598997 0.04010025 high_gc</span></span> +<span><span class="co">## max_prediction vote_prediction num_prediction</span></span> +<span><span class="co">## <char> <char> <int></span></span> +<span><span class="co">## 1: high_gc high_gc 399</span></span></code></pre> +</div> +</div> + </main><aside class="col-md-3"><nav id="toc"><h2>On this page</h2> + </nav></aside> +</div> + + + + <footer><div class="pkgdown-footer-left"> + <p>Developed by Philipp Münch, René Mreches, Martin Binder, Hüseyin Anil Gündüz, Xiao-Yin To, Alice McHardy.</p> +</div> + +<div class="pkgdown-footer-right"> + <p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.9.</p> +</div> + + </footer> +</div> + + + + + + </body> +</html>