| colSds | Standard deviasion of columns and rows in sparse matrix |
| colZeros | Count number of zeros in columns and rows in sparse matrix |
| dist | Compute similarity/distance between rows or columns of large matrices |
| rowSds | Standard deviasion of columns and rows in sparse matrix |
| rowZeros | Count number of zeros in columns and rows in sparse matrix |
| simil | Compute similarity/distance between rows or columns of large matrices |