recodquant {PCAmixdata}

Recoding of the quantitative data matrix

Description

Recoding of the quantitative data matrix.

Usage

  recodquant(X)

Arguments

X

the quantitative data matrix.

Value

Z

the standardized quantitative data matrix (centered and reduced with the standard deviations.)

g

the means of the columns of X

s

the standard deviations of the columns of X (population version with 1/n)

Xcod

The quantitative matrix X with missing values replaced with the column mean values.

Examples

data(decathlon)
X <- decathlon[1:5,1:5]
X[1,2] <- NA
X[2,3] <-NA
rec <- recodquant(X)