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Variance/co variance matrix singular. Check for perfectly correlated variables with zero variance

NC Ngwane

November 17, 2014 11:49

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Hi im still a beginner in Idrisi, im trying to do a supervised classification using MAXLIKE classification and i'm getting an error that states "Variance/co variance matrix singular. Check for perfectly correlated variables with zero variance." If anyone can help what would be the problem and how can i fix it.

 

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  Clark Labs February 27, 2015 18:34

  You should check your training sites and sample size for each. Maybe select new sites and run Makesig again.