I have a matrix with elements both real and complex.I want to find Max value within a column of that matrix ,,ignoring all the complex element in that column.

Eg. If in a particular column of matrix suppose elements are ( 1 ,2 ,3+2i) then I want to find the max ignoring (3+2i) means my answer should be 2

Answer 1

[Image Analyst]

Try this:

v = [1; 2; 3+2i]

v = 
   1.0000 + 0.0000i
   2.0000 + 0.0000i
   3.0000 + 2.0000i

goodRows = imag(v) == 0

goodRows = 3×1 logical array
   1
   1
   0

theMax = max(v(goodRows))

theMax = 2