% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/preprocess.R
\name{split_fasta}
\alias{split_fasta}
\title{Split fasta file into smaller files.}
\usage{
split_fasta(
  path_input,
  target_folder,
  split_n = 500,
  shuffle_entries = TRUE,
  delete_input = FALSE
)
}
\arguments{
\item{path_input}{Fasta file to split into smaller files}

\item{target_folder}{Directory for output.}

\item{split_n}{Maximum number of entries to use in smaller file.}

\item{shuffle_entries}{Whether to shuffle fasta entries before split.}

\item{delete_input}{Whether to delete the original file.}
}
\value{
None. Writes files to output.
}
\description{
Returns smaller files with same file name and "_x" (where x is an integer). For example,
assume we have input file called "abc.fasta" with 100 entries and \code{split_n = 50}. Function will
create two files called "abc_1.fasta" and "abc_2.fasta" in \code{target_path}.
}
\examples{
path_input <- tempfile(fileext = '.fasta')
create_dummy_data(file_path = path_input,
                  num_files = 1,
                  write_to_file_path = TRUE,
                  seq_length = 7,
                  num_seq = 25,
                  vocabulary = c("a", "c", "g", "t"))
target_folder <- tempfile()
dir.create(target_folder)

# split 25 entries into 5 files
split_fasta(path_input = path_input,
            target_folder = target_folder,
            split_n = 5)
length(list.files(target_folder)) 

}