R: Summaries of amounts

summary.aplus {compositions} | R Documentation

## Summaries of amounts

### Description

Summary of a vector of amounts, according to its underlying geometry.

### Usage

              ## S3 method for class 'aplus'
    summary( object, ...,
                digits=max(3, getOption("digits")-3), robust=NULL)
              ## S3 method for class 'rplus'
    summary( object, ..., robust=NULL)
              ## S3 method for class 'rmult'
    summary( object, ..., robust=NULL)

### Arguments

`object` | an `aplus`/`rplus` set of amounts
`digits` | the number of significant digits to be used. The argument can also be used with rplus/rmult.
`...` | not used, only here for generics
`robust` | A robustness description. See robustnessInCompositions for details. The option is currently not supported. If support is added the default will change to getOption(robust).

### Details

The obtained value is the same as for the classical summary `summary`, although in the case of `aplus` objects, the statistics have been computed in a logarithmic geometry, and exponentiated afterwards (which just changes the mean, equivalent to the geometric mean of the data set).

### Value

A matrix containing summary statistics (minimum, the three quantiles, the mean and the maximum) of each component.

### Author(s)

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

### See Also

`aplus`,`rplus`,`summary.acomp`, `summary.rcomp`

### Examples

    data(SimulatedAmounts)
    summary(aplus(sa.lognormals))
    summary(aplus(sa.tnormals))
    summary(rplus(sa.lognormals))
    summary(rplus(sa.tnormals))
    summary(rmult(sa.lognormals))

[Package compositions version 2.0-4 Index]