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Calculating mean in array

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Royvg94
Royvg94 2015-9-18
评论： Adam 2015-9-18
I got an 69 x 1 array, which contains 12 x 2 and some 13 x 2 matrices. I want to calculate the mean of the 2nd column of every matrix in the array. And if possible, get the results to show in an 69 x 1 matrix.
Thanks for the help!

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Adam
Adam 2015-9-18
cellfun( @(x) mean(x(:,2)), myArray )
should work, assuming you mean you have a cell array which is the only type of array that would fit your description.
  2 个评论
Royvg94
Royvg94 2015-9-18
what do i have to fill in on the x?
Adam
Adam 2015-9-18
'myArray' should be replaced by whatever you have named your 69x1 array.
'x' is just a placeholder. Usually I name my variables more verbosely, but in cellfun I often just use 'x' as a placeholder rather than giving it a longer name. You can call it what you like so long as you use the same name in both places 'x' appears.

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