Finding 0 in data for n X 2 array

2021 1 2
2 个回答
回答已采纳
更新时间：2021 1 2
3 次查看（30 天）

0 个投票

hi all,
Good day! pretty new to matlab, and used to be a java programmer that is more familiar with for loops. I do know there are certain elegance in matlab by using some Matlab functions on matrix / arrays.
I have a simple problem that i think can be resolved without a for loop, and i think we can use the "All" function in Matlab but i couldn't grasp it just yet.
I have the below data.
36 -31
36 -27
0 0
35 -30
0 0
32 -30
0 0
31 -30
0 0
32 -30
, just wanted to remove the whole row if both values are 0 in the same row. Is it possible without doing a for loop? Thank you!
Darren

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 采纳的回答

KALYAN ACHARJYA
KALYAN ACHARJYA 2021-1-2
编辑：KALYAN ACHARJYA 2021-1-2

1 个投票

Another way
result=data(~(data(:,1)==0 & data(:,2)==0),:)
result =
36 -31
36 -27
35 -30
32 -30
31 -30
32 -30

更多回答（1 个）

Alan Stevens
Alan Stevens 2021-1-2
编辑：Alan Stevens 2021-1-2

1 个投票

Here's one way:
ix = (M(:,1)+M(:,2))==0;
M(ix,:) = [];

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