st for Mac

st ==

simple statistics from the command line interface (CLI)

Description

Imagine you have this sample file:

$ cat numbers.txt 1 2 3 4 5 6 7 8 9 10

How do you calculate the sum of the numbers?

The traditional way

If you ask around, you'll come up with suggestions like these:

$ awk '{s+=$1} END {print s}' numbers.txt 55

$ perl -lne '$x += $_; END { print $x; }' numbers.txt 55

$ sum=0; while read num ; do sum=$(($sum + $num)); done --quartile=

If no functions are selected, "st" will print the default output:

N min max sum mean stddev

You can also use the following predefined sets of functions:

--summary # five-number summary (min q1 median q3 max) --complete # everything

Formatting

--format|fmt|f= # default: "%g" --delimiter|d= # default: "t"

--no-header|nh # don't display header --transpose-output|to # switch rows and columns

Examples of valid formats ("--format" option):

%d signed integer, in decimal %e floating-point number, in scientific notation %f floating-point number, in fixed decimal notation %g floating-point number, in %e or %f notation

Input validation

By default, "st" skips invalid input with a warning.

You can change this behavior with the following options:

--strict # throws an error, interrupting process --quiet|q # no warning

Author

Nelson Ferraz >

Contribute

Send comments, suggestions and bug reports to:

https://github.com/nferraz/st/issues

Or fork the code on github:

https://github.com/nferraz/st