dprep (version 3.0.2)

decscale: Decimal Scaling

Description

This is a function to apply decimal scaling to a matrix or dataframe. Decimal scaling transforms the data into [-1,1] by finding k such that the absolute value of the maximum value of each attribute divided by 10\^k is less than or equal to 1.

Usage

decscale(data)

Arguments

data

The dataset to be scaled

Value

decdata

The original matrix that has been scaled by decimal scaling

Details

Uses the scale function found in the R base package.

Examples

data(sonar)
def=par(mfrow=c(2,1))
plot(sonar[,2])
dssonar=decscale(sonar)
plot(dssonar[,2])
par(def)