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Average is a simple and fast command-line Perl utility for calculating basic statistics on a list of numbers (one number per line). It works as a traditional Unix filter and can be used as part of those greatly useful chains of piped commands.
It calculates average (arithmetic mean), standard deviation, median, total sum, minimum and maximum values present, and shows the number of processed numbers.
Entry can by a text file (any column can be specified, default is the first) or directly in the terminal if Average is run without specifying a file -- in which case, input can be terminated by pressing Ctrl-D.
It is possible to choose the output of a single statistic (just the value, no labels), instead of the fully detailed output (default).
Features
- number of decimal places specifiable by user
- any column in the input can be used as input
- output in scientific notation if desired
- arithmetic mean
- standard deviation
- median
- reports minimum and maximum values encountered
- reports total sum
- reports total number of numbers processed
- skips lines starting with #, unless specified by user
- numbers can be entered from a file or directly in terminal (end input with Ctrl-D)