get_region_summary {methrix} | R Documentation

## Extract and summarize methylation or coverage info by regions of interest

### Description

Extract and summarize methylation or coverage info by regions of interest

### Usage

    get_region_summary(
      m,
      regions = NULL,
      type = "M",
      how = "mean",
      overlap_type = "within",
      na_rm = TRUE,
      elementMetadata.col = NULL,
      verbose = TRUE,
      n_chunks = 1,
      n_cores = 1
    )

### Arguments

`m` | `methrix` object
`regions` | genomic regions to be summarized. Could be a data.table with 3 columns (chr, start, end) or a `GenomicRanges` object
`type` | matrix which needs to be summarized. Coule be ‘M', 'C'. Default ’M'
`how` | mathematical function by which regions should be summarized. Can be one of the following: mean, sum, max, min. Default 'mean'
`overlap_type` | defines the type of the overlap of the CpG sites with the target region. Default value is 'within'. For detailed description, see the `findOverlaps` function of the `IRanges` package.
`na_rm` | Remove NA's? Default `TRUE`
`elementMetadata.col` | columns in `rowData(methrix)` which needs to be summarised. Default = NULL.
`verbose` | Default TRUE
`n_chunks` | Number of chunks to split the `methrix` object in case it is very large. Default = 1.
`n_cores` | Number of parallel instances. `n_cores` should be less than or equal to `n_chunks`. If `n_chunks` is not specified, then `n_chunks` is initialized to be equal to `n_cores`. Default = 1.

### Details

Takes `methrix` object and summarizes regions

### Value

a coverage or methylation matrix

### Examples

    data('methrix_data')
    get_region_summary(m = methrix_data,
    regions = data.table(chr = 'chr21', start = 27867971, end =  27868103),
    type = 'M', how = 'mean')

[Package methrix version 1.6.0 Index]