/Shell/Bash/Bash calculate the standard deviation of a column

Bash calculate the standard deviation of a column

# Example usage:
awk '{delta = $1 - avg; avg += delta / NR; mean2 += delta * ($1 - avg); } END { print sqrt(mean2 / NR); }' input_file
# This produces the standard deviation for column 1. Change the 1s to
# whichever column number you want.

# Example usage 2:
awk ‘{delta = $1 – avg; avg += delta / NR; mean2 += delta * ($1 – avg); } END { print sqrt(mean2 / (NR-1)); }’ input_file
# This is the calculation for a sample instead of a population

Source: maravelias.info

Similar codes

1 vote220 views1 answer
How to lkill adb
Shell/Bash
0 vote197 views1 answer
Git deinit repo
Shell/Bash
0 vote234 views1 answer
How to update old branch
Shell/Bash
15 votes230 views6 answers
Kubectl install on ubuntu
Shell/Bash
0 vote176 views1 answer
How to add a character to beginning of multiple lines in vim
Shell/Bash
16 votes225 views4 answers
Linux find text in files recursively -include
Shell/Bash
4 votes230 views4 answers
Ssh agent remember passphrase
Shell/Bash
0 vote231 views1 answer
Multiply command bash
Shell/Bash
1 vote207 views1 answer
Powershell tolower
Shell/Bash
8 votes247 views3 answers
Git delete unstaged files
Shell/Bash