Hi,
 
I'm using e1071 package to do fuzzy cluster analysis. My dataset (ra) has
5237 observations and 2 variables - depth and velocity. I used fuzzy cmeans
to create 6 fuzzy classes.
 

>ra.flcust6<-cmeans(ra,6,iter.max=100,verbose=F,dist="euclidean",method="cmea
ns",m=1.7,rate.par=NULL,weights=1)

 

I would like to calculate the value of all the fuzzy validity measures using
the flcustIndex function. However it returned the following error:

 

> fclustIndex(ra.flcust6,ra,index="all")
Error in solve.default(scatter[, , i]) : 
  Lapack routine dgesv: system is exactly singular


 

Please could anyone explain what this means and what I have done wrong?

 

thanks

Caroline Wallis

 


	[[alternative HTML version deleted]]


