MATLAB: How to find index of matrix if value is known

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Kv= 212.640075234138  212.941159818301  213.241495908758  213.541083505509
211.539179873813  211.843738655644  212.147548943768  212.450610738187
210.439033007195  210.747065986692  211.054350472484  211.360886464570
209.339634634282  209.651141811447  209.961900494907        210.271910684660
208.240984755075  208.555966129908  208.870199011035  209.183683398456
207.143083369574  207.461538942074  207.779246020869  208.096204605957
206.045930477779  206.367860247947  206.689041524409  207.009474307164
NaN  NaN  NaN  NaN
NaN  NaN  NaN  NaN
If i know thw column is 1 and min value is 206 how would i find row index?

Best Answer

[val,idx] = min(kv(:,1))
Or if you want (row,col) of the minimum element in a matrix use:
A = rand(3) ;
[val,idx] = min(A(:)) ;
[i,j] = ind2sub(size(A),idx) ;  % row, column position of min 
[A(i,j) val]
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