please help me to solve this issue

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jaah navi
jaah navi on 7 Dec 2017
Commented: ANKUR KUMAR on 7 Dec 2017
could anyone can help me how to solve the issue
i want to add output_it(t,r,it).
where the value of output_it(t,r,it) is
output_it(:,:,1) =
[1.0e+16 *
0.0042 0.0633 0.0015 0.0099 0.0078;
0.0728 0.8843 2.8774 1.0145 1.0306;
0.7713 0.2718 0.4548 0.0162 0.0366;
0.0166 0.0114 0.0902 0.0087 0.0093;
0.0157 0.0375 0.0155 0.0042 0.0223;]
output_it(:,:,2) =
[1.0e+15 *
0.1940 0.0874 0.0481 0.1994 0.0927;
0.1135 0.0597 0.0507 0.0373 0.4475;
0.1277 0.9099 0.0948 0.1493 0.1414;
0.5734 1.8800 1.2900 0.2083 0.7211;
1.8153 2.6751 1.1576 9.5234 3.4484;]
output_it(:,:,3) =
[1.0e+15 *
2.5446 2.6430 1.1182 0.6000 0.0170;
0.2950 0.2830 0.0374 0.2028 0.0216;
0.4422 0.0303 0.0435 0.0796 0.1220;
1.9572 0.1589 0.5177 0.3122 0.3589;
0.1480 0.1326 0.0720 1.4849 0.0770;]
output_it(:,:,4) =
[1.0e+14 *
0.4818 0.3794 1.3795 0.2764 2.6247;
1.7508 2.9381 1.9491 1.5523 4.4306;
1.1985 0.5977 3.3783 1.4159 5.9268;
0.8402 2.4732 0.5696 0.7225 0.8774;
5.7730 4.4573 3.0514 7.0787 0.5669;]
output_it(:,:,5) =
[1.0e+16 *
0.0307 0.1335 0.2582 0.0972 0.0333;
1.8765 3.0360 0.5547 2.9308 4.7885;
0.8131 3.3146 0.1962 0.8415 0.1620;
0.0345 0.0712 0.0570 0.0196 0.0715;
0.0275 0.0775 2.1518 0.0995 0.0675;]
i need to sum output(t,r,it) so i used the command sum(output_it,5) but i unable to get the result.

Answers (1)

ANKUR KUMAR
ANKUR KUMAR on 7 Dec 2017
Your matrices are in 3D. So if you want to add all along third dimension, so use
sum(output_it,3)
Suppose, your matrix having dimension 20*30*15
sum(A,3) gives a matrix of dimension 20*30
sum(A,2) gives a matrix of dimension 20*1*15
sum(A,1) gives a matrix of dimension 1*30*15
In the last 2 results, you can delete the unit dimension using permute or squeeze
  2 Comments
jaah navi
jaah navi on 7 Dec 2017
i used the command sum(output_it,3) but its not giving the correct answer.
ANKUR KUMAR
ANKUR KUMAR on 7 Dec 2017
If your matrix contains some nan values, then you should to you use nanmean.

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