Bug 105148 – Add a script to compute the mean and 95% confidence interval (using two-sided t-test) of a sample set

• Status: RESOLVED
• Resolution: FIXED
• Component: New Bugs

[Maciej Stachowiak]

Add a script to compute the mean and 95% confidence interval (using two-sided t-test) of a sample set

[Maciej Stachowiak]

Created attachment 179680 [details]
Patch

[Maciej Stachowiak]

$ sampstat --help
Usage: sampstat [options] [FILES]
  Compute the mean and 95% confidence interval of a sample set.
  Standard input or files must contain at two or more decimal numbers, one per line.

Options:
  -h, --help            show this help message and exit
  -u UNIT, --unit=UNIT  assume values are in units of UNIT
  -v, --verbose         print all values (with units)

$ sampstat -u MB memresults.txt
2356.90 MB +/- 101.34 MB (4.3%)

$ sampstat -v -u MB memresults.txt
      2318.21 MB
      2399.56 MB
      2352.93 MB
----------------
Mean: 2356.90 MB +/- 101.34 MB (4.3%)

[Filip Pizlo]

Comment on attachment 179680 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=179680&action=review

> Tools/ChangeLog:8
> +        Additional information of the change such as approach, rationale. Please add per-function descriptions below (OOPS!).

should probably say things

[Maciej Stachowiak]

Committed r137869: <http://trac.webkit.org/changeset/137869>