beadcount {wateRmelon} | R Documentation

## Creates matrix of beacounts from minfi data.

### Description

Creates matrix of beacounts from data read in using the minfi package. NAs represent probes with beadcount <3. An Extended RG Channel Set is required for this function to work.

### Usage

    beadcount(x)

### Arguments

`x` | 450K methylation data read in using minfi to create an Extended RG Channel Set

### Value

A matrix of bead counts with bead counts <3 represented by NA for use in the pfilter function for quality control

### Note

The beadcount function is internal to the pfilter function

### Author(s)

Ruth.Pidsley@kcl.ac.uk

### References

[1] Pidsley R, Wong CCY, Volta M, Lunnon K, Mill J, Schalkwyk LC: A data-driven approach to preprocessing Illumina 450K methylation array data (submitted)

[Package wateRmelon version 1.26.0 Index]