How to make sure all the elements in an array are less than certain value?

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I have an array of type double (name= speed) and it has 72000 values, and i want to write a condition that if any of the elements in speed are less than '800' then do certain calculations, if it is greater than '800' then do certain caluclations


Image Analyst
Image Analyst 2018 年 12 月 18 日
編集済み: James Tursa 2018 年 12 月 19 日
Let's say you want to multiply by 2 if less than 800, and divide by 4 otherwise. Create a mask, then do the assignment of the new values.
mask = speed < 800;
speed(mask) = speed(mask) * 2;
% ~mask (tilde mask) inverts mask and selects speed >= 800
speed(~mask) = speed(~mask) / 4; % fixed typo
  4 件のコメント
raghavendra kandukuri
raghavendra kandukuri 2018 年 12 月 19 日
Thank you, @Image Analyst,Elijah,James


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