Update scection.py

scection.py

@@ -18,7 +18,8 @@ def scection_step(data, indices_to_consider, min_expression,expression_range, nm
     nb_samples=len(indices_to_consider)
     data_to_consider=data[:,indices_to_consider]
 
-    # keep only genes that have in one sample and a fold change greater than expression_range across samples    
+    # keep only genes that have a minimum expression greater than min_expression in at least one sample
+    # and a fold change greater than expression_range across samples    
     genes_indices=((amax(data_to_consider,axis=1)>=log(min_expression)/log(2))
                    & (amax(data_to_consider,axis=1)-amin(data_to_consider,axis=1)>=log(expression_range)/log(2))).nonzero()[0]