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b/man/edgeR_analyze.Rd |
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% Generated by roxygen2: do not edit by hand |
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% Please edit documentation in R/EdgeRAnalyze.R |
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\name{edgeR_analyze} |
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\alias{edgeR_analyze} |
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\title{Differential Gene Expression Analysis using 'edgeR'} |
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\usage{ |
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edgeR_analyze( |
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tumor_file, |
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normal_file, |
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output_file, |
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logFC_threshold = 2.5, |
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p_value_threshold = 0.01 |
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) |
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} |
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\arguments{ |
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\item{tumor_file}{Path to the tumor data file (RDS format).} |
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\item{normal_file}{Path to the normal data file (RDS format).} |
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\item{output_file}{Path to save the output DEG data (RDS format).} |
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\item{logFC_threshold}{Threshold for log fold change for marking up/down-regulated genes.} |
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\item{p_value_threshold}{Threshold for p-value for filtering significant genes.} |
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} |
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\value{ |
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A data frame of differential expression results. |
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} |
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\description{ |
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This function performs differential gene expression analysis using the 'edgeR' package. |
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It reads tumor and normal expression data, merges them, filters low-expressed genes, |
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normalizes the data, performs edgeR analysis, and outputs the results along with information |
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on gene expression changes. |
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} |
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\examples{ |
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# Define file paths for tumor and normal data from the data folder |
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tumor_file <- system.file("extdata", |
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"removebatch_SKCM_Skin_TCGA_exp_tumor_test.rds", |
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package = "TransProR") |
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normal_file <- system.file("extdata", |
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"removebatch_SKCM_Skin_Normal_TCGA_GTEX_count_test.rds", |
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package = "TransProR") |
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output_file <- file.path(tempdir(), "DEG_edgeR.rds") |
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DEG_edgeR <- edgeR_analyze( |
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tumor_file = tumor_file, |
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normal_file = normal_file, |
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output_file = output_file, |
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2.5, |
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0.01 |
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) |
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# View the top 5 rows of the result |
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head(DEG_edgeR, 5) |
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} |
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\references{ |
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edgeR: Differential analysis of sequence read count data. |
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For more information, visit the edgeR Bioconductor page: |
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https://www.bioconductor.org/packages/release/bioc/vignettes/edgeR/inst/doc/edgeRUsersGuide.pdf |
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} |