segplot-CNVDetectionResult-method: Visualization of a CNV detection result.

In gpovysil/cn.mops: cn.mops - Mixture of Poissons for CNV detection in NGS data

Visualization of a CNV detection result.

Description

Plots the log normalized read counts and the detected segments as a segmentation plot.

Usage

## S4 method for signature 'CNVDetectionResult'
segplot(r, mainCN = "CN2", sampleIdx, seqnames,
  segStat = "mean", plot.type = "s", altcol = TRUE, sbyc.layout,
  cbys.nchrom = 1, cbys.layout, include.means = TRUE, zeroline = TRUE,
  pt.pch = ".", pt.cex = 3, pt.cols = c("green", "black"),
  segcol = "red", zlcol = "grey", ylim, lwd = 3, ...)

Arguments

r	An instance of "CNVDetectionResult"
mainCN	The name of the main copy number. That is "CN2" for diploid individuals. For haplocn.mops this should be set to "CN1".
sampleIdx	The index of the samples to be plotted. (Default = missing)
seqnames	The names of the reference sequence (chromosomes) to be plotted. (Default = missing)
segStat	Whether the segment line should display the mean or the median of a segments calls. (Default = "mean").
plot.type	the type of plot. (Default = "s").
altcol	logical flag to indicate if chromosomes should be plotted in alternating colors in the whole genome plot. (Default = TRUE).
sbyc.layout	layout settings for the multifigure grid layout for the ‘samplebychrom’ type. It should be specified as a vector of two integers which are the number of rows and columns. The default values are chosen based on the number of chromosomes to produce a near square graph. For normal genome it is 4x6 (24 chromosomes) plotted by rows. (Default = NULL).
cbys.nchrom	the number of chromosomes per page in the layout. (Default = 1).
cbys.layout	layout settings for the multifigure grid layout for the ‘chrombysample’ type. As above it should be specified as number of rows and columns and the default chosen based on the number of samples. (Default = NULL).
include.means	logical flag to indicate whether segment means are to be drawn. (Default = TRUE).
zeroline	logical flag to indicate whether a horizontal line at y=0 is to be drawn. (Default = TRUE).
pt.pch	the plotting character used for plotting the log-ratio values. (Default = ".")
pt.cex	the size of plotting character used for the log-ratio values (Default = 3).
pt.cols	the color list for the points. The colors alternate between chromosomes. (Default = c("green","black").)
segcol	the color of the lines indicating the segment means. (Default = "red").
zlcol	the color of the zeroline. (Default = "grey").
ylim	this argument is present to override the default limits which is the range of symmetrized log-ratios. (Default = NULL).
lwd	line weight of lines for segment mean and zeroline. (Default = 3).
...	other arguments which will be passed to plot commands.

Value

Generates a segmentation plot.

Author(s)

Guenter Klambauer [e-mail]

Examples

data(cn.mops)
r <- cn.mops(X[1:200, ])
segplot(r,sampleIdx=1)

gpovysil/cn.mops documentation built on Feb. 4, 2024, 10:18 a.m.