To find the average of values in matrix

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Sasidharan Subramani
回答： Star Strider 2021-10-15
I have 32 (131X160) matrices. I want to find the average of 5 elements in each matrices and return in (1X32) matrix.
  2 个评论
Jan
Jan 2021-10-15
How are the 32 matrices stored? As fields of a struct, as cell array, as numerical 3D array?
Which 5 elements are you interested in? How are they given? As indices, logical index or values?
Sasidharan Subramani
Sasidharan Subramani 2021-10-15
They are stored as cell array in workspace and I would like to get the index (85,65) to (90,65)

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回答（1 个）

Star Strider
Star Strider 2021-10-15
Ran in:
Try something like this (assuming that they are stored as elements of a cell array similar to these) —
C = {randn(131,160), randn(131,160), randn(131,160), randn(131,160), randn(131,160)};
Cm = cellfun(@(x)mean(x(85:90,65)), C)
Cm = 1×5
-0.2017 -0.0349 0.2242 0.1696 0.0868
Experiment with the actual cell array to get differnt results.
.

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