PCL_READ
Extract Numeric Data from a PCL File

PCL_READ is a 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 is the name of the PCL file to be read.
• file.txt is the name of the text file to be created, which will contain the numeric data in the PCL file.

Licensing:

The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.

Languages:

PCL_READ is available in a C version.

Related Data and Programs:

PCL, a dataset directory which contains datasets from a gene expression experiment on Arabidopsis;

Source Code:

• pcl_read.c, the source code.

Examples and Tests:

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.