pmFragmentLength {oligo} | R Documentation

## Access the fragment length for PM probes.

### Description

Accessor to the fragment length for PM probes.

### Usage

    pmFragmentLength(object, enzyme, type=c('snp', 'cn'))

### Arguments

`object` | `PDInfo` or `SnpFeatureSet` object.
`enzyme` | Enzyme to be used for query. If missing, all enzymes are used.
`type` | Type of probes to be used: 'snp' for SNP probes; 'cn' for Copy Number probes.

### Value

A list of length equal to the number of enzymes used for digestion. Each element of the list is a data.frame containing:

- `row`: the row used to link to the PM matrix;

- `length`: expected fragment length.

### Note

There is not a 1:1 relationship between probes and expected fragment length. For one enzyme, a given probe may be associated to multiple fragment lengths. Therefore, the number of rows in the data.frame may not match the number of PM probes and the `row` column should be used to match the fragment length with the PM matrix.

[Package oligo version 1.54.1 Index]