help how can I find the minimum number and return it's index in each row?

help how can I find the minimum number and return it's index in each row?

[maha ismail]

I have a matrix not a vector and I need the minimum value except 0 and position of minimum value in each row

Answer 1

[Manoj]

a=[8,2,3,4,5];    
[b,ix]=min(a);

ix gives you the positions and b gives the minimum value

[maha ismail]

I need to correct this program

[Guillaume]

Your question has been answered, so you should accept the answer.

As for your program, it has no comment and you haven't even said what is wrong with it or what it's supposed to do. What are we supposed to correct?

Your program is just a convoluted way of doing

mm = m(:)';

Is that the correction you're looking for?

[maha ismail]

sorry dear I have a matrix not a vector I have a positive number and 0 I need to find the minimum value except 0 and I need to return the position of minimum value in each row ..but my program is not run..

[maha ismail]

dear manoj thanks alot for help me its a perfect solution but I need another update if the matrix has a zero value and the zero is the smallest value but I don't choose it I need more than zero and the smallest after zero

Answer 2

[Guillaume]

To find the minimum of a row, use:

min(m, [], 2)

Probably, the simplest way to ignore 0s is to replace them with NaNs before calling min.

m(m == 0) = nan;
[mval, mcol] = min(m, [], 2);

[maha ismail]

dear Guillaume thanks alot for help me ..it's done