p3-stats

Statistically Analyze Numerical Values

p3-stats.pl [options] statCol

This script divides the input into groups by the key column and analyzes the values found in a second column (specified by the parameter). It outputs the mean, standard deviation, minimum, maximum, and count.

Parameters

The positional parameter is the name of the column to be analyzed. It must contain only numbers.

The standard input can be overriddn using the options in Input Options.

Additional command-line options are the following.

• col

The index (1-based) or name of the key column used to divide the file into groups. The default is 0, indicating the last column. If none is specified, then all of the rows are put into a single group.

• nohead

If specified, then it is assumed there are no headers.