qqplotter: Quantile-quantile plot for observed vs. expected p-values

Description Usage Arguments Details Value

View source: R/qqplotter.R

Description

qqplotter returns a pdf file containing the QQ-plot for a given set of p-values

Usage

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  qqplotter(p_values = NULL, res.file = NULL,
    p.num.col = NULL, sep = " ", out.file = "QQplot.pdf",
    title = "")

Arguments

p_values

A vector or a column in a data-set containing p-values to plot. This is an alternative to file.

res.file

File name of the file containing p-values to retrieve. This alternative does not require loading the results and is an alternative to the p_values parameter.

p.num.col

Number indicating which column of the file contains p-values. Specify only if you are using the file option.

sep

File separator to be used when reading file. Default is white space.

title

Title to appear on the plot.

out.file

File name for the output plot.

Details

The function is useful for comparing expected and observed distributions of statistics arising from genome-wide testing. Two different types of input are allowed:

Value

The output will be a pdf file containing the QQplot.


MultiMeta documentation built on May 29, 2017, 11:20 p.m.