nucleosome_tiling {nucleR} | R Documentation

## Example intensities from Tiling Microarray nucleosome positioning experiment

### Description

Some bases from S.cerevisiae tiling microarray where mononucleosomes were sequenced and hybridizated with histone-free naked DNA. The intensity is the normalized ratio between the intensities from nucleosomic and naked DNA.

### Format

`numeric` vector with the intensities.

### Details

Due to the difficulty of providing a raw file, this file has been preprocessed. See details.

The raw .CEL files from Affymetrix S.Cerevisiae Tilling 1.0R Array (3 nucleosomal + 3 naked DNA) has been merged using package `Starr` and the resulting `ExpressionSet` object has been passed to `processTilingArray` function from this package as follows:

`processTilingArray(data, exprName, chrPAttern="Sc:Oct_2003;chr1", closeGaps=50)`

The first 8000bp of the chr1 have been saved as this example dataset.

### Source

Publication pending

[Package nucleR version 2.24.0 Index]