replacing values in matrices under some condition

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Aleksandra Ksiezyk
Aleksandra Ksiezyk on 12 Mar 2021
Commented: Aleksandra Ksiezyk on 13 Mar 2021
I have 2 matrixs: pa and win and i would like to create a matrix pTW where: if in pa is not 0 set to pTW a value from win.
pTW(pa ~= 0) = win ; this does not work
pa =
0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0
44 26 20 0 0 0 0 0 0 0 14 61
94 48 48 0 0 0 0 0 0 0 20 112
114 66 60 0 0 0 0 0 0 0 21 201
144 80 48 0 0 0 0 0 0 0 28 52
135 110 0 0 0 0 0 0 0 0 25 20
168 102 0 0 0 0 0 0 0 0 18 0
168 70 0 0 0 0 0 0 0 0 0 0
88 0 0 0 0 0 0 0 0 0 0 0
win =
0 0 0 0 0 0.0083 0.0188 0 0 0 0 0
0 0 0 0 0 0.0181 0.0444 0 0 0 0 0
0 0 0 0 0 0.0236 0.0363 0 0 0 0 0
0 0 0 0 0.0040 0.0333 0.0376 0.0108 0.0042 0 0 0
0 0 0 0 0.0323 0.0444 0.0255 0.0349 0.0139 0 0 0
0 0 0 0 0.0296 0.0431 0.0430 0.0672 0.0194 0 0 0
0 0 0 0 0.0349 0.0528 0.0430 0.0860 0.0264 0 0 0
0 0 0 0 0.0309 0.0569 0.0376 0.1008 0.0347 0 0 0
0 0 0 0.0097 0.0255 0.0569 0.0914 0.0726 0.0431 0 0 0
0 0 0 0.0208 0.0323 0.0514 0.0645 0.0699 0.0500 0 0 0
0 0 0 0.0278 0.0390 0.0500 0.0591 0.0484 0.0681 0.0202 0 0
0 0 0.0108 0.0319 0.0511 0.0500 0.0726 0.0672 0.0597 0.0376 0 0
0 0 0.0242 0.0361 0.0484 0.0417 0.0780 0.0591 0.0611 0.0336 0.0042 0
0 0 0.0242 0.0403 0.0685 0.0444 0.0618 0.0847 0.0667 0.0538 0.0083 0
0 0 0.0349 0.0472 0.0565 0.0528 0.0484 0.0659 0.0861 0.0524 0.0153 0
0 0 0.0242 0.0389 0.0484 0.0556 0.0349 0.0995 0.0722 0.0497 0.0097 0
0 0.0015 0.0349 0.0542 0.0565 0.0569 0.0363 0.0712 0.0667 0.0591 0.0222 0
0 0.0238 0.0323 0.0597 0.0538 0.0514 0.0457 0.0578 0.0667 0.0847 0.0569 0
0 0.0312 0.0282 0.0708 0.0726 0.0556 0.0309 0.0040 0.0556 0.0645 0.0681 0
0.0094 0.0268 0.0376 0.0653 0.0470 0.0417 0.0444 0 0.0514 0.0726 0.0556 0.0013
0.0282 0.0402 0.0403 0.0708 0.0470 0.0375 0.0457 0 0.0472 0.0645 0.0347 0.0148
0.0349 0.0312 0.0403 0.0653 0.0269 0.0333 0 0 0.0347 0.0820 0.0625 0.0269
0.0363 0.0417 0.0591 0.0542 0.0336 0.0236 0 0 0.0250 0.0699 0.0319 0.0954
0.0457 0.0417 0.0618 0.0542 0.0309 0.0125 0 0 0.0250 0.0484 0.0597 0.0793
0.0444 0.0461 0.0565 0.0500 0.0376 0.0042 0 0 0.0139 0.0618 0.0347 0.0712
0.0605 0.0476 0.0806 0.0403 0.0363 0 0 0 0.0083 0.0336 0.0556 0.0726
0.0645 0.0625 0.0511 0.0417 0.0336 0 0 0 0 0.0470 0.0389 0.0269
0.0538 0.0670 0.0457 0.0333 0.0228 0 0 0 0 0.0309 0.0653 0.0645
0.0457 0.0506 0.0430 0.0319 0 0 0 0 0 0.0336 0.0347 0.0215
0.0457 0.0565 0.0376 0.0264 0 0 0 0 0 0 0.0611 0.0645
0.0457 0.0685 0.0282 0.0208 0 0 0 0 0 0 0.0569 0.0242
0.0430 0.0595 0.0376 0.0083 0 0 0 0 0 0 0.0611 0.0672
0.0457 0.0491 0.0269 0 0 0 0 0 0 0 0.0722 0.0618
0.0538 0.0446 0.0376 0 0 0 0 0 0 0 0.0264 0.0376
0.0591 0.0387 0.0269 0 0 0 0 0 0 0 0.0194 0.0820
0.0632 0.0357 0.0323 0 0 0 0 0 0 0 0.0139 0.0753
0.0511 0.0327 0.0269 0 0 0 0 0 0 0 0.0097 0.0901
0.0484 0.0298 0.0161 0 0 0 0 0 0 0 0.0097 0.0175
0.0363 0.0327 0 0 0 0 0 0 0 0 0.0069 0.0054
0.0376 0.0253 0 0 0 0 0 0 0 0 0.0042 0
0.0323 0.0149 0 0 0 0 0 0 0 0 0 0
0.0148 0 0 0 0 0 0 0 0 0 0 0

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Accepted Answer

the cyclist
the cyclist on 12 Mar 2021
Edited: the cyclist on 12 Mar 2021
You need to also select those specific elements from win, and also create pTW of the correct size, if it does not exist.
pTW = zeros(size(pa));
pTW(pa ~= 0) = win(pa ~= 0);

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