How do you set entries in a matrix for odd rows with odd columns to zero?

Question

L'O.G. 2023-2-15

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1912750-how-do-you-set-entries-in-a-matrix-for-odd-rows-with-odd-columns-to-zero

回答： Dyuman Joshi 2023-2-15

采纳的回答： Dyuman Joshi

I want to set A(i,j) = 0 if both i and j are odd. Is this possible to do vectorially?

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Dyuman Joshi 2023-2-15

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1912750-how-do-you-set-entries-in-a-matrix-for-odd-rows-with-odd-columns-to-zero#answer_1171800

在 MATLAB Online 中打开

%random data for example
A = rand(6,7)
A = 6×7
    0.5610    0.2871    0.6280    0.3569    0.2765    0.5197    0.9541
    0.3110    0.6573    0.3447    0.8105    0.0255    0.8263    0.2238
    0.1450    0.6944    0.2345    0.6517    0.8826    0.6646    0.2389
    0.0189    0.9227    0.6658    0.1392    0.9954    0.4346    0.1812
    0.2084    0.3130    0.1589    0.8685    0.6272    0.6153    0.3176
    0.9900    0.3501    0.1301    0.0931    0.5342    0.8533    0.5644
A(1:2:end,1:2:end)=0
A = 6×7
         0    0.2871         0    0.3569         0    0.5197         0
    0.3110    0.6573    0.3447    0.8105    0.0255    0.8263    0.2238
         0    0.6944         0    0.6517         0    0.6646         0
    0.0189    0.9227    0.6658    0.1392    0.9954    0.4346    0.1812
         0    0.3130         0    0.8685         0    0.6153         0
    0.9900    0.3501    0.1301    0.0931    0.5342    0.8533    0.5644