R: Obtain statistic of centrality

CentralValue {DescTools} | R Documentation

## Obtain statistic of centrality

### Description

This function obtains a statistic of centrality of a variable given a sample of its values.

### Usage

    CentralValue(x, ws = NULL)

### Arguments

`x` | A vector of values (the sample).
`ws` | A vector of case weights (defaulting to NULL, i.e. no case weights).

### Details

If the variable is numeric it returns de median of the given sample, if it is a factor it returns the mode. In other cases it tries to convert to a factor and then returns the mode.

### Value

A number if the variable is numeric. A string with the name of the most frequent nominal value, otherwise.

### Author(s)

Luis Torgo ltorgo@dcc.fc.up.pt

### References

Torgo, L. (2010) Data Mining using R: learning with case studies, CRC Press (ISBN: 9781439810187).

http://www.dcc.fc.up.pt/~ltorgo/DataMiningWithR

### See Also

`mean`, `median`

### Examples

    # An example with numerical data
    x <- rnorm(100)
    CentralValue(x)
    # An example with nominal data
    y <-
    factor(sample(1:10,200,replace=TRUE),levels=1:10,labels=paste('v',1:10,sep=''))
    CentralValue(y)

[Package DescTools version 0.99.32 Index]