filter_low_var {GWENA} | R Documentation

## Filtering genes with low variability

### Description

Remove low variating genes based on the percentage given and the type of variation specified.

### Usage

    filter_low_var(data_expr, pct = 0.8, type = c("mean", "median", "mad"))

### Arguments

`data_expr` | matrix or data.frame or SummarizedExperiment, table of expression values (either microarray or RNA-seq), with genes as column and samples as row
`pct` | float, percentage of gene to keep, value must be in ]0;1[
`type` | string, function name used for filtration. Should be either "mean", "median", or "mad"

### Value

A data.frame of filtered genes

### Examples

    df <- matrix(abs(rnorm(15*45)), 15)
    colnames(df) <- paste0("gene_", seq_len(ncol(df)))
    rownames(df) <- paste0("sample_", seq_len(nrow(df)))
    df_filtered <- filter_low_var(df)

[Package GWENA version 1.0.1 Index]