subset_se_cells_for_group_test {celaref} | R Documentation

## subset_se_cells_for_group_test

### Description

This function for use by `contrast_each_group_to_the_rest` downsamples cells from a summarizedExperiment (dataset_se) - keeping n.group (or all if fewer) cells from the specified group, and n.other from the rest. This maintains the proportions of cells in the 'other' part of the differential expression comparisons.

### Usage

    subset_se_cells_for_group_test(dataset_se, the_group, n.group = Inf,
      n.other = n.group * 5)

### Arguments

`dataset_se` | Summarised experiment object containing count data. Also requires 'ID' and 'group' to be set within the cell information.
`the_group` | The group being subsetted for
`n.group` | How many cells to keep for each group. Default = Inf
`n.other` | How many cells to keep from everything not in the group. Default = n.group * 5

### Details

Cells are randomly sampled, so set the random seed (with set.seed()) for consistant results across runs.

### Value

dataset_se A hopefully more managably subsetted version of the inputted dataset_se

### See Also

Calling function `contrast_each_group_to_the_rest`

`subset_cells_by_group` Exported function for subsetting each group independantly upfront. (For when this approach is still unmanageable)

[Package celaref version 1.2.0 Index]