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Re: Re: Clsuter analysis wiht IDL [message #24015 is a reply to message #23847]

Thu, 01 March 2001 02:57

dw
Messages: 10
Registered: February 2001

Junior Member

<html>
Benno, 
 
Thanks for the input. 
You suggested: 
  
use something like 
ref_img=REFORM(image,1,658*658) 
weights = clust_wts(ref_img, n_clusters=3) 
cls=cluster(ref_img,weights,n_cluster=3) 
tvscl,reform(cls,658,658) 
 
but when computing the weights it goes bad 
Program caused arithmetic
error: Floating underflow 
and I get an array that is [1,3] and the values are 
5.60519e-045 
5.60519e-045 
5.60519e-045 
 
tried converting to float before calculating weights, but same
result. Any suggestions anyone? realize per Craig's post that cluster
analysis isn't what IDL has been used most for... 
D 
 
</html>

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[Message index]

		Re: Clsuter analysis wiht IDL By: Craig Markwardt on Fri, 23 February 2001 08:20
		Re: Re: Clsuter analysis wiht IDL By: dw on Thu, 01 March 2001 03:20
		Re: Re: Clsuter analysis wiht IDL By: dw on Thu, 01 March 2001 02:57
		Re: Re: Clsuter analysis wiht IDL By: dw on Mon, 05 March 2001 00:26

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