Coordinate Descent-Based Sparse Nonnegative Matrix Factorization for Robust Cancer-Class Discovery and Microarray Data Analysis

Algorithm 1

Pseudocode for CDSNMF

1: Inputs: datamatrix ;

2: Initialize and scale;

3: Set sparsity parameter

4: repeat

5: for: do

6:  ;

7: Use (7) to update ;

8: ifthen

9: ;

10: end if

11: Repeat steps 6 to 10 using (9) to update ;

12: end for

13: until Stopping condition.