PCL_READ
Extract Numeric Data from a PCL File

PCL_READ is an executable C program which reads a PCL file and writes a copy containing only the numeric data. The main reason for doing this is so that the resulting file can easily be read by a program as pure numeric data.

The PCL files we are considering contain gene expression data from experiments on Arabidopsis. The first line of the file contains a (long) list of labels. There follow N records, each containing 3 labels and 14 numeric values, separated by TAB characters. PCL_READ reads this data, ignoring the title and labels, and writes N records of numeric data to a new file.

Usage:

        pcl_read file.pcl file.txt
      

file.pcl

the name of the PCL file to be read.

file.txt

the name of the text file to be created, which will contain the numeric data in the PCL file.

Source Code:

• pcl_read.c, the source code.
• pcl_read.csh, commands to compile and load the source code.

Examples and Tests:

A number of PCL files are available in the PCL dataset directory.

I1039 is a PCL file.

• i1039.pcl, the original PCL file.
• i1039.dat, 1152 lines of data extracted by PCL_READ.

I1650 is a PCL file.

• i1650.pcl, the original PCL file.
• i1650.dat, 180 lines of data extracted by PCL_READ.

I2032 is a PCL file.

• i2032.pcl, the original PCL file.
• i2032.dat, 1481 lines of data extracted by PCL_READ.

I29111 is a PCL file.

• i29111.pcl, the original PCL file.
• i29111.dat, 1031 lines of data extracted by PCL_READ.

List of Routines:

• PCL_READ reads a PCL file for Arabidopsis and writes out a pure data file.
• PCL_TO_PURE reads data from a PCL file and writes the numeric data
• TIMESTAMP prints the current YMDHMS date as a time stamp.

You can go up one level to the C source codes.