Finding 0 in data for n X 2 array

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

Answer 1

[KALYAN ACHARJYA]

Another way

result=data(~(data(:,1)==0 & data(:,2)==0),:)

result =

    36   -31
    36   -27
    35   -30
    32   -30
    31   -30
    32   -30

[Darren Lim]

thank you Kalyan, this works ! :)

Answer 2

[Alan Stevens]

Here's one way:

ix = (M(:,1)+M(:,2))==0;
M(ix,:) = [];

[Darren Lim]

thanks Alan,

this works as well ! learnt a lot today!

Darren