extract_rows_from_file

file

The location to output the file. If this is
  <code>NULL</code>, we redirect output back into the <span style="R">R</span>
  session.

column

The delimiter used in <code>file</code>. Must be a
  single character. If no delimiter is specified, we guess
  the delimiter from the first row of <code>file</code>.

A character vector containing all items that
  we want to check and keep within the <code>column</code>th
  column of each row.

keep


This function reads through a delimited file on disk,
determines if the entry at the specified column is in a
character vector of items, and writes that line to file (or
to <span style="R">R</span>) if it is.


This package contains a collection of functions for common data
extraction and reshaping operations, string manipulation, and
functions for table and plot generation for R Markdown documents.

extract_rows_from_file: Extract Rows from File

Description

Usage

Arguments

See Also