MATLAB: Replacing the value

matrix

I have a dataset
gene  samples
1      .6     .1    .8
2       .2    .98   .96
10     0.45    .4   .87 
like these i have 50 rows and 62 columns
there are three conditions
A=(<=.4)
B=>.4 to .87
C=>.87
from these conditions i want to get output as
A=1,2,10(genes)
B=1,10(genes)
C=2(genes)
please help how to process

Best Answer

   samples = [
   .6     .1    .8
   .2    .98   .96
   .45    .4   .87 ];
  genes = [1;2;10];
  %A=(<=.4)
  A = genes(any(samples<=.4,2))
  %B=>.4 to .87
  B = genes(any(samples>=.4 & samples<.87 ,2))
  %C=>.87
  C = genes(any(samples>=.87,2))
Related Question