recodquant function

Recoding of the quantitative data matrix

Recoding of the quantitative data matrix.

recodquant(X)

Arguments

• X: the quantitative data matrix.

Returns

• 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)