obtain column value for lowest element in each row of an 2D array

I have a 2D array 20 X 10 double. Each row has a lowest figure. I am trying to obtain the column value of the minimum element in each row. I do not need the row value, just the column value. I have searched an been able to find the minimum value but the forums do not show a way of obtaining individual row or column figures for a set value. Assistance appreciated

[Stephen23]

"I am trying to obtain the column value of the minimum element in each row. I do not need the row value, just the column value."

What does this mean? When you write "value", do you actually mean index ?

"..the forums do not show a way of obtaining individual row or column figures for a set value."

What is the "set value"?

[Koule Pantazopoulos]

Thank you for your submission. This outputs 2 values. I am specifically trying to obtain only the column value of the element of each row in the array

[Koule Pantazopoulos]

I apologise. You are correct in identifying the index as what I am looking for. Each element has an index of (r,c). I am looking to extract the c index of the element I am choosing. Thanks for taking an interest in my dilemma.

[Koule Pantazopoulos]

Your solution is what i am looking for . Can i extract the idc on its own?

[Stephen23]

"Can i extract the idc on its own?"

[~,idc] = min(A,[],2)

https://www.mathworks.com/help/matlab/matlab_prog/ignore-function-outputs.html

[Koule Pantazopoulos]

Is there any way of using this solution with fprintf?

[Stephen23]

"Is there any way of using this solution with fprintf?"

fprintf('%d,',idc)

If you want some other formatting then following the guidelines in the fprintf help.

Answer 1

[Stephen23]

If you want to get the column indices, then this is the second output from min, when you work along the second dimension:

[vec,idc] = min(A,[],2)

For example:

>> A = randi(9,3,4)
A =
   3   9   6   3
   9   6   3   2
   6   3   6   7
>> [vec,idc] = min(A,[],2)
vec =
   3
   2
   3
idc =
   1
   4
   2

vec contains the minimum values for each row. idc contains the corresponding column indices.

[Koule Pantazopoulos]

Very elegant. Thank you,

[Koule Pantazopoulos]

Thank you again. Very impressed, by your knowledge and speed of response.