name2factor: extract data from array names

In zarquon42b/Morpho: Calculations and Visualisations Related to Geometric Morphometrics

extract data from array names

Description

extract data from array names

Usage

name2factor(x, sep = "_", which, collapse = sep, as.factor = TRUE)

name2num(x, sep = "_", which, collapse = sep, dif = TRUE)

Arguments

x	data, can be a three-dimensional array, a matrix, a named list or a vector containing names to split
sep	character by which to split the strings
which	integer or vector of integers, if more entries are selected, they will be concatenated by the string specified with the option 'collapse'.
collapse	character by which to collapse data if two strings are to be concatenated
as.factor	logical: if TRUE, a factor vector will be returned, strings otherwise.
dif	logical: calculate difference if two fields containing numbers are selected.

Details

extract data from array names and convert to factors or numbers

If an array is used as input, the data info is expected to be in the 3rd dimension, for a matrix, rownames are used.

Value

returns a vector containing factors or numbers

Author(s)

Stefan Schlager

Examples

data <- matrix(rnorm(200),100,2)
id <- paste("id",1:100,sep="")
pop <- c(rep("pop1",50),rep("pop2",50))
sex <- c(rep("male",50),rep("female",50))
age <- floor(rnorm(100,mean=50,sd=10))
rownames(data) <- paste(id,pop,sex,age,sep="_")
infos <- data.frame(pop=name2factor(data,which=2))
infos$age <- name2num(data,which=4)
infos$pop.sex <- name2factor(data,which=2:3)

zarquon42b/Morpho documentation built on Jan. 28, 2024, 2:11 p.m.