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Correlation between 2 rasters?

Bram Van Helleputte

August 15, 2013 22:32

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Hi all,

I am trying to find out if there is a correlation between 2 rasters. I know for fact that its a function somewhere under change/time series. 

I tried the REGRESS function but this sees my discrete variables as continuous variables (11 nominal landuse classes). So I'm not looking for a linear regression but something that works for nominal variables, like a chi-square

Can someone help me with this?

 

Many thanks in advance

 

Bram Van Helleputte

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2 comments

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  Bram Van Helleputte August 16, 2013 20:20

  Oh and do not mean correlation in the narrow statistical sens, more like 'to find pattern'

   

  I guess I am looking for something like a multiple correspondance analysis but on raster data

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  Clark Labs August 19, 2013 15:36

  Hi Bram,

  You can try a couple of options, the modules CROSSTAB and VALIDATE. 

  James Toledano

  Clark Labs