minimum row value and return the row

i need to find a minimum row value in a matrix. eg

A=[12 64 76; 34 10 27; 9 8 20; 10 30 8]

And the desired output would be min value of row = [9 8 20] which is row number 3.

is there any function can do this? I noticed that min () function is used to find the minimum value in a row NOT minimum row value.

[Matthew Anderson]

This might be a little late, but the min(min()) function would do the trick

Answer 1

[Teja Muppirala]

Do you mean to say, you want the row with the minimum maximum value?

A=[12 64 76; 34 10 27; 9 8 20; 10 30 8];
[value,ind] = min(max(A,[],2));
A(ind,:)

ans =
   9     8    20

Or

A = [ 7 9 5;   3 8 7;   4 5 6]
[value,ind] = min(max(A,[],2));
A(ind,:)

ans =
   4     5     6

[azie]

thanks teja. actually i dont understand how its works. but it works for my case. ur second choice. if u can explain what min max mean would be better.thanks. max(A,[],2) : what is 2 stands for?

Answer 2

[Roger Stafford]

You have not told us what aspect of rows you are minimizing. I will guess you want the row index of the row with the least sum.

 [c,ix] = min(sum(A,2));

The value 'c' is the minimum row sum and 'ix' is that row's index.

[azie]

the value for each column can't be sum up.each column is different. just need the lowest row value.

Answer 3

[James Tursa]

If you want row that contains the minimum value (it is not clear to me what "minimum row" means):

[x xi] = min(A(:));
xij = ind2sub(xi,size(A));
minrow = A(xij(1),:);

[azie]

im looking for minimum value for the whole row.even there is much lower value in other column but in term of the WHOLE ROW it is the lowest/minimum. just see my example and my desired output.

[James Tursa]

Can you please define what "minimum row" means? What is the minimum row of the following matrix (and why)?

[ 7 9 5;
  3 8 7;
  4 5 6]

[azie]

the minimum row value will be [4 5 6]. the minimum value that we can get in a row.

Answer 4

[Heba Khaled]

how to get the minimum value of particular rows in matlab