how to convert array of cells within array of cells in single cell array

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Mausmi Verma
Mausmi Verma 2021-12-26
编辑： Image Analyst 2021-12-26
A= {<1x1 cell> <1x3 cell> [4,0] <1x4 cell>}
where
<1x1>= [2,3,4]
<1x3>= [ ] [3,4] [3,8,13]
<1x4>= [9,4] [9,8,13] [ ] [9,14,19]
so i want my answer to be in form of a single array of cells as below,
B={ [2,3,4] [3,4] [3,8,13] [4] [9,4] [9,8,13] [9,14,19] }
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Image Analyst
Image Analyst 2021-12-26
编辑：Image Analyst 2021-12-26
OK I see that you want null cells to be left out, but how did cell number 4 come to contain [4]:
B={ [2,3,4] [3,4] [3,8,13] [4] [9,4] [9,8,13] [9,14,19] }
The third cell of A contains a vector [4, 0]. But B{4} is [4]. What happened to the 0? Do you want to exclude zeros also for some reason?

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回答（1 个）

Stephen23
Stephen23 2021-12-26
编辑：Stephen23 2021-12-26
Ran in:
A = {{[2,3,4]},{ [],[3,4],[3,8,13]},{[4,0]},{[9,4],[9,8,13],[],[9,14,19]}}
A = 1×4 cell array
{1×1 cell} {1×3 cell} {1×1 cell} {1×4 cell}
B = [A{:}]
B = 1×9 cell array
{[2 3 4]} {0×0 double} {[3 4]} {[3 8 13]} {[4 0]} {[9 4]} {[9 8 13]} {0×0 double} {[9 14 19]}
https://www.mathworks.com/help/matlab/matlab_prog/comma-separated-lists.html
https://www.mathworks.com/matlabcentral/answers/320713-how-to-operate-on-comma-separated-lists
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Voss
Voss 2021-12-26
@Stephen's answer creates a single cell array, as requested. The only difference is between his result and the result you want is that his result retains the empty elements from the original cell array. You can remove the empty elements like this:
B(cellfun(@(x)isempty(x),B)) = [];
Stephen23
Stephen23 2021-12-26
编辑：Stephen23 2021-12-26
Or without the anonymous function:
B(cellfun(@isempty,B)) = [];
"...so i want my answer to be in single cell array"
and is what my answer gives you.

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