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Top Forums Shell Programming and Scripting Calculating mean for samples 1-3 4-6 etc. Post 302881547 by danieladna on Monday 30th of December 2013 08:13:39 AM
Old 12-30-2013
Question Calculating mean for samples 1-3 4-6 etc.

Hi.
I have a LOOONG list of samples but I am not sure how to write the loop/script to calculate the mean...
I normally use awk...
...................MEAN
Sample1 25.82 40.61333
Sample1 47.6
Sample1 48.42
Sample2 54.03 54.12
Sample2 53.98
Sample2 54.35
etc.....

I would like to receive a list like this:
Sample1 40.61333
Sample2 54.12
etc...

Thanks for your help,
DNA
 

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pridist.d(1m)							   USER COMMANDS						     pridist.d(1m)

NAME
pridist.d - process priority distribution. Uses DTrace. SYNOPSIS
pridist.d DESCRIPTION
This is a simple DTrace script that samples at 1000 Hz which process is on the CPUs, and what the priority is. A distribution plot is printed. With priorities, the higher the priority the better chance the process (actually, thread) has of being scheduled. This idea came from the script /usr/demo/dtrace/profpri.d, which produces similar output for one particular PID. Since this uses DTrace, only users with root privileges can run this command. EXAMPLES
This samples until Ctrl-C is hit. # pridist.d FIELDS
CMD process name PID process ID value process priority count number of samples of at least this priority BASED ON
/usr/demo/dtrace/profpri.d DOCUMENTATION
DTrace Guide "profile Provider" chapter (docs.sun.com) See the DTraceToolkit for further documentation under the Docs directory. The DTraceToolkit docs may include full worked examples with ver- bose descriptions explaining the output. EXIT
pridist.d will sample until Ctrl-C is hit. SEE ALSO
dispadmin(1M), dtrace(1M) version 0.90 Jun 13, 2005 pridist.d(1m)
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