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help with IF statement [message #90059]

Wed, 21 January 2015 09:26

g.nacarts
Messages: 148
Registered: November 2013

Senior Member

Hi

I need some help with an IF statement because I suspect that it's not doing what I really wish to do.

I have a 3D array [120,200,200] which contains my data. Then I am using this matrix to create another matrix. My code looks like this

DataArray ; contains the 3D data
Mean = total(DataArray[0:4,*,*],1)/5.

for i = 0, 199 do begin
for j = 0, 199 do begin
Barray = DataArray[*,i,j] - Array[i,j]
IF (TOTAL(Barray LT 0)) GT 0 THEN NEW_DATA[*,j,k] = Mean[j,k] $
ELSE NEW_DATA[*,j,k] = Mean[j,k] + OTHER
endfor
endfor

What I wanted to achieve with the above is that if an entry in the Barray has a negative value then the New_Data it's equals the mean otherwise NEW_DATA= Mean+ OTHER.
My data are images and when I display the images after that I found out that in places that there are not negative numbers the new_data array equals the mean only not the whole expression (Mean[j,k] + OTHER). Why this happened? It supposed to use the mean only when there are negatives.

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[Message index]

		help with IF statement By: g.nacarts on Wed, 21 January 2015 09:26
		Re: help with IF statement By: penteado on Wed, 21 January 2015 16:07
		Re: help with IF statement By: g.nacarts on Thu, 22 January 2015 01:29

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