How to if-else in 1 line in matlab like C --- x = (d <
in [Matlab]
|
Prev: How to if-else in 1 line in matlab like C --- x = (d < D0)?20:30;---
Next: Keeping the same color bar in a sequence of pcolor figures
From: Aui on 4 Dec 2009 01:02 Thank you Justus. Actually, I want to apply on matrix and the code is just for example. The real one is F_mb = G./((D <= 500).*H1); F_mb = G./((D > 500).*H2); where D, G, H1 and H2 is matrix with the same size. I just would like to combine them into a single line. Is that possible.
From: Aui on 4 Dec 2009 01:17 Well, actually, the above code is that I would like to avoid divided by zeros. but the above code is still incorrect. My goal is that I would like to divide G with H only the position that H element is not zeros so that will not produce divided by zero problem. F_mb = G./((H1 ~= 0).*H1); but in this case, even H1 is 0, it still divided by zeros.
From: Matt Fig on 4 Dec 2009 02:01 In this thread you seem to be unclear as to what exactly you want. Does this do it? F_mb = H1~=0; F_mb = G(F_mb)./H1(F_mb) This *could* be done in one line, but it wouldn't be as efficient.
From: Aui on 4 Dec 2009 02:39 Hello, Matt Fig, Thank you. It seems to produce what I want but the dimension of the result matrix change!!!! How can I keep the same dimension? I applied your code for testing a small size matrix F_mb = H1~=0; F_mb = G(F_mb)./H1(F_mb) ------------------- >> G = [2 2; 4 4]; >> H1 = [0 0; 10 10]; >> F_mb = H1~=0 F_mb = 0 0 1 1 >> F_mb = G(F_mb)./H1(F_mb) F_mb = 0.4000 0.4000 ------------------ What I expect the result should be F_mb = 2 2 0.4000 0.4000 Thank you
From: Matt Fig on 4 Dec 2009 05:48
Well that does add a little bit of complication doesn't it? % Data G = [2 2; 4 4]; H1 = [0 0; 10 10]; % Engine F_mb = G; idx = H1~=0; F_mb(idx) = G(idx)./H1(idx) |