w4m_filter_by_sample_class | Filter W4M data matrix by sample-class |
w4m_filter_imputation | Impute missing intensities to zero for W4M data matrix (deprecated) |
w4m_filter_median_imputation | Impute missing intensities to median for W4M data matrix |
w4m_filter_no_imputation | Do not impute missing intensities to zero for W4M data matrix, but convert negative intensities to zero |
w4m_filter_zero_imputation | Impute missing values to zero for W4M data matrix |
w4m__nonzero_var | Support function to eliminate rows or columns that have zero variance |
w4m__var_by_rank_or_file | Support function to compute variances of matrix rows or columns |