Multiple Maximas in multiple matrices

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Eren Atar
Eren Atar 2022-6-14
评论： Voss 2022-6-14
Ran in:
Hello,
I want to get multiple maximas of multiple matrices.
I got a solution to get the maxValue but it gives me one absolute max Value.
I want a output like this for this example:
max Value = [15 25 35]
% data
matrix1=[10:1:15];
matrix2=[15:1:25];
matrix3=[25:1:35];
%max
maxValue = max([matrix1(:);matrix2(:);matrix3(:)])
maxValue = 35
  1 个评论
Jan
Jan 2022-6-14
Hint: [] is the operator for a concatenation of arrays. 10:1:15 is a vector and [10:1:15] concatenates it with nothing. So this is a waste of time only.

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采纳的回答

Voss
Voss 2022-6-14
Ran in:
% data
matrix1=[10:1:15];
matrix2=[15:1:25];
matrix3=[25:1:35];
%max
maxValue = cellfun(@max,{matrix1 matrix2 matrix3})
maxValue = 1×3
15 25 35
  3 个评论
显示 1更早的评论
Image Analyst
Image Analyst 2022-6-14
What? Really? Why are you messing with the complication and inefficiencies of cell arrays when a simple solution like I gave works fine? Personally I would not use this method because I try to avoid cell arrays unless absolutely necessary. Beginners especially have a hard time trying to figure out when to use parentheses and when to use braces when dealing with cell arrays.

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更多回答（1 个）

Image Analyst
Image Analyst 2022-6-14
Ran in:
Try it this way, with max() inside the brackets:
% data
matrix1=[10:1:15];
matrix2=[15:1:25];
matrix3=[25:1:35];
%max
maxValue = [max(matrix1(:)); max(matrix2(:)); max(matrix3(:))]
maxValue = 3×1
15 25 35

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