Last data update: 2014.03.03

 R: QQ-plot for factor levels
byf.qqnormR Documentation

QQ-plot for factor levels

Description

Draws a QQ-plot of a numeric variable per level of a factor.

Usage

byf.qqnorm(formula, data, ...)

Arguments

formula

a formula of the form a ~ b where a gives the data values and b a factor giving the corresponding groups.

data

an optional data frame containing the variables in the formula formula. By default the variables are taken from environment(formula).

...

other arguments to pass to qqPlot.

Author(s)

Maxime Herv<c3><a9> <mx.herve@gmail.com>

See Also

link[RVAideMemoire]{byf.shapiro}, qqPlot

Examples

data(iris)
byf.qqnorm(Sepal.Length~Species,data=iris)

Results


R version 3.3.1 (2016-06-21) -- "Bug in Your Hair"
Copyright (C) 2016 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

> library(RVAideMemoire)
*** Package RVAideMemoire v 0.9-56 ***
> png(filename="/home/ddbj/snapshot/RGM3/R_CC/result/RVAideMemoire/byf.qqnorm.Rd_%03d_medium.png", width=480, height=480)
> ### Name: byf.qqnorm
> ### Title: QQ-plot for factor levels
> ### Aliases: byf.qqnorm
> 
> ### ** Examples
> 
> data(iris)
> byf.qqnorm(Sepal.Length~Species,data=iris)
> 
> 
> 
> 
> 
> dev.off()
null device 
          1 
>


Created & Maintained by Osamu Ogasawara (osamu.ogasawara@gmail.com) and IMSBIO