Removing elements of array by condition and without resizing?
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I'm trying to produce an array to later write into a .txt file. Currently, the array I am working with is a 5323x18 double. Due to the nature of its conception, roughly all the first 3-5 columns contain a non-zero numerical value, while the other columns (6-18) occasionally contains a non-zero numerical value. The rest of the elements of the array are zero. In order to ensure that the .txt file doesn't have any of these zeros, is there any way I can delete those elements from the array, while maintaining the array size?
For example, turning something like the following array:
[ 1 5 0 0 0 0
1 5 6 7 0 0
4 0 0 0 0 0
5 5 5 5 5 5]
to
[ 1 5
1 5 6 7
4
5 5 5 5 5 5]
回答（1 个）
madhan ravi
2019-2-19
Result=arrayfun(@(x)nonzeros(a(x,:)).',1:size(a,1),'un',0); % where a is your matrix
celldisp(Result)
5 个评论
Jonathan Cardoza
2019-2-19
madhan ravi
2019-2-19
matrix cannot have holes so cell array is preferred
Jonathan Cardoza
2019-2-19
madhan ravi
2019-2-19
yes by holes I mean empty
Jonathan Cardoza
2019-2-19
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2019-2-19
2019-2-19
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