[Kst] [Bug 121566] rms scalar is wrong

[Barth Netterfield]

Yes.
cbn

On February 7, 2006 08:33 pm, George Staikos wrote:
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> http://bugs.kde.org/show_bug.cgi?id=121566
>
>
>
>
> ------- Additional Comments From staikos kde org  2006-02-08 05:33 -------
> SVN commit 506997 by staikos:
>
> correct RMS
> Looks like a refactoring gone wrong...  Ok for 1.2.0 and trunk?
> CCBUG: 121566
>
>
>  M  +2 -2      kstvector.cpp
>
>
> --- branches/kst/hfi_calib/kst/kst/kstvector.cpp #506996:506997
>  @ -195,9 +195,9  @
>
>      if (_nsum >= 2) {
>        double sum = _scalars["sum"]->value();
> -      double sumsq;
> +      double sumsq = _scalars["sumsquared"]->value();
>        _scalars["mean"]->setValue(_mean = sum/double(_nsum));
> -      _scalars["sigma"]->setValue(sumsq =
> sqrt((_scalars["sumsquared"]->value() - sum * sum / double(_nsum)) /
> double(_nsum-1))); +      _scalars["sigma"]->setValue(sqrt((sumsq - sum *
> sum / double(_nsum)) / double(_nsum-1)));
> _scalars["rms"]->setValue(sqrt(sumsq/double(_nsum)));
>      } else {
>        _scalars["sigma"]->setValue(_max - _min);
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