standard deviation = sqrt(M2 - M1^2) where M1 is the mean. I hope this helps. Patrick
On Sat, Apr 29, 2017 at 12:18 PM Rupert Gladstone < rupertgladstone1...@gmail.com> wrote: > Hi, I'd like to calculate a correlation coefficient between two variables > in a vtu data set. I am not experienced with statistics but the Pearson > correlation coefficient looks suitable. So I just need the covariance and > standard deviations. > > The Paraview Multicorrelative Statistics filter seems to give the > covariance, but I can't find a filter that gives the standard deviation. > The Descriptive Statistics filter is supposed to give standard deviation > according to the documentation, but I am not getting it when I run the > filter. I am referring to this documentation: > http://www.paraview.org/Wiki/Statistical_analysis > > I am currently running both paraview 4.0.1 and 5.0.0. They give slightly > different outputs from the statistics filters, but neither gives me the > standard deviation (unless it is hidden in M2, M3 or M4? I don't know what > these are). > > Can anyone help with either my lack of standard deviation or an > alternative way to calculate a correlation coefficient? > > Thanks, > Rupert Gladstone > _______________________________________________ > Powered by www.kitware.com > > Visit other Kitware open-source projects at > http://www.kitware.com/opensource/opensource.html > > Please keep messages on-topic and check the ParaView Wiki at: > http://paraview.org/Wiki/ParaView > > Search the list archives at: http://markmail.org/search/?q=ParaView > > Follow this link to subscribe/unsubscribe: > http://public.kitware.com/mailman/listinfo/paraview >
_______________________________________________ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Search the list archives at: http://markmail.org/search/?q=ParaView Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/paraview