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12/5/2016 4:18 AM
 
Band Math  (N/A)

How can i write this expression in ENVI band math?

r=(∑_i▒〖(x_i-x_m )  〖(y〗_i-y_m)〗)/(√(∑_i▒(x_i-x_m ) ^2 )  √(∑_i▒(y_i-y_m ) ^2 ))


 
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12/5/2016 11:54 AM
 
Re: Band Math  (N/A)

I am not sure if all the symbols came through correctly so it is difficult to know how you might write this in band math.  Which variables would map to a band or file?  

http://www.harrisgeospatial.com/docs/...

It looks complicated enough to need more than a single line so you would likely need to write it as a function in IDL.  

 
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