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 ))
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?
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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