Coordinates of projected points

Description

Returns the coordinates of a set of points when orthogonally projected on a new axis.

Usage

coord.proj(coord,slp)

Arguments

Author(s)

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

Examples

data(iris)

# Original coordinates
plot(Petal.Length~Sepal.Length,pch=16,col=as.numeric(iris$Species),data=iris)

# New axis
abline(-6,1.6)

# Coordinates on new axis
new.coord <- coord.proj(iris[,c("Sepal.Length","Petal.Length")],1.6)
stripchart(new.coord~Species,data=iris,col=1:3)

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/coord.proj.Rd_%03d_medium.png", width=480, height=480)
> ### Name: coord.proj
> ### Title: Coordinates of projected points
> ### Aliases: coord.proj
> 
> ### ** Examples
> 
> data(iris)
> 
> # Original coordinates
> plot(Petal.Length~Sepal.Length,pch=16,col=as.numeric(iris$Species),data=iris)
> 
> # New axis
> abline(-6,1.6)
> 
> # Coordinates on new axis
> new.coord <- coord.proj(iris[,c("Sepal.Length","Petal.Length")],1.6)
> stripchart(new.coord~Species,data=iris,col=1:3)
> 
> 
> 
> 
> 
> dev.off()
null device 
          1 
>