cor: Correlations of amounts and compositions

Description Usage Arguments Details Value Author(s) See Also Examples

View source: R/compositions.R

Description

Computes the correlation matrix in the various approaches of compositional and amount data analysis.

Usage

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          cor(x,y=NULL,...)
          ## Default S3 method:
cor(x, y=NULL, use="everything", 
                       method=c("pearson", "kendall", "spearman"),...)
          ## S3 method for class 'acomp'
cor(x,y=NULL,...,robust=getOption("robust"))
          ## S3 method for class 'rcomp'
cor(x,y=NULL,...,robust=getOption("robust"))
          ## S3 method for class 'aplus'
cor(x,y=NULL,...,robust=getOption("robust"))
          ## S3 method for class 'rplus'
cor(x,y=NULL,...,robust=getOption("robust"))
          ## S3 method for class 'rmult'
cor(x,y=NULL,...,robust=getOption("robust"))
          

Arguments

x

a data set, eventually of amounts or compositions

y

a second data set, eventually of amounts or compositions

use

see cor

method

see cor

...

further arguments to cor e.g. use

robust

A description of a robust estimator. FALSE for the classical estimators. See mean.acomp for further details.

Details

The correlation matrix does not make much sense for compositions.

In R versions older than v2.0.0, cor was defined in package “base” instead of in “stats”. This might produce some misfunction.

Value

The correlation matrix.

Author(s)

K.Gerald v.d. Boogaart http://www.stat.boogaart.de

See Also

var.acomp

Examples

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Example output

Loading required package: tensorA

Attaching package: 'tensorA'

The following object is masked from 'package:base':

    norm

Loading required package: robustbase
Loading required package: energy
Loading required package: bayesm
Welcome to compositions, a package for compositional data analysis.
Find an intro with "? compositions"


Attaching package: 'compositions'

The following objects are masked from 'package:stats':

    cor, cov, dist, var

The following objects are masked from 'package:base':

    %*%, scale, scale.default

       Cu        Zn        Pb 
 5.392698 14.908465 38.319017 
            Cd          Co
Cu -0.09523015  0.09523015
Zn -0.01806860  0.01806860
Pb  0.06635710 -0.06635710
            Cd          Co
Cu -0.05397537  0.05397537
Zn -0.02733591  0.02733591
Pb  0.04157885 -0.04157885
            Cd          Co
Cu -0.13655989 -0.10701624
Zn -0.14212410 -0.12289844
Pb -0.04364565 -0.03854308
           Cd          Co
Cu -0.1194319 -0.10617287
Zn -0.1491914 -0.14016729
Pb -0.0498596 -0.05170684
            Cd          Co
Cu -0.04033043 -0.02282343
Zn -0.05860886 -0.05584438
Pb  0.05886045  0.04699779

compositions documentation built on June 14, 2018, 5:03 p.m.