manipulating three dimensional cell arrays

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sermet
sermet 2017-8-3
编辑： Stephen23 2017-8-3
I have a three dimensional cell array data as follows;
val(:,:,1) =
[3x4 double]
val(:,:,2) =
[3x4 double]
val(:,:,3) =
[4x4 double]
val(:,:,4) =
[5x4 double]
val(:,:,5) =
[5x4 double]
I need to remove sub-arrays whose rows number below 4. In this case, val(:,:,1) and val(:,:,2) need to be removed. So "data" should be;
val(:,:,1) =
[4x4 double]
val(:,:,2) =
[5x4 double]
val(:,:,3) =
[5x4 double]
How can I perform this editing?

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Stephen23
Stephen23 2017-8-3
编辑：Stephen23 2017-8-3
Use cellfun and indexing. This will remove along the third dimension:
out = val(:,:,cellfun('size',val,1)>=4)

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