How to delete rows or move rows in the 2D Matrix

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Naufal Arfani 2021-1-4

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编辑： KALYAN ACHARJYA 2021-1-4

I have a problem that is I have a 2D matrix of [11x1000] with the image below, it can be seen that in the initial row the value is all 0, is there an easy way to delete the initial 0 value so that it becomes [10x1000]? Or maybe move the initial row to the last row to keep the number of elements? Please help me. because I can't continue to findpeaks when the initial value is 0. thanks a lot

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Answer 1

KALYAN ACHARJYA 2021-1-4

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https://ww2.mathworks.cn/matlabcentral/answers/708103-how-to-delete-rows-or-move-rows-in-the-2d-matrix#answer_590573

编辑：KALYAN ACHARJYA 2021-1-4

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"I have a problem that is I have a 2D matrix of [11x1000] with the image below, it can be seen that in the initial row the value is all 0, is there an easy way to delete the initial 0 value so that it becomes [10x1000]?"

Lets consider data variable as 2D input Matrix

data(~(sum(data,2)==0),:)

After this assignment, there will be no rows in the data matrix with all zero elements. If in later section of code may require original data, in that case please do copy with another variable.