processByChunks {cTRAP} | R Documentation

## Process data column by chunks

### Description

Columns will be processed per chunk if argument `data` is a `perturbationChanges` object containing a file path instead of a data matrix. Otherwise, the data will be processed as a single chunk.

### Usage

    processByChunks(data, FUN, ..., chunkSize = 10000)

### Arguments

`data` | Data matrix or `perturbationChanges` object
`FUN` | Function: function to run for each chunk
`...` | Arguments passed to `FUN`
`chunkSize` | Integer: number of columns to load on-demand (a higher value increases RAM usage, but decreases running time)

### Details

For instance, loading a chunk of 10000 CMap pertubations requires ~1GB of RAM compared to loading the whole dataset.

### Value

Results of running `FUN`

[Package cTRAP version 1.5.0 Index]