mice (version 2.2)

mice.impute.mean: Imputation by the Mean

Description

Imputes the arithmetic mean of the observed data

Usage

mice.impute.mean(y, ry, x=NULL)

Arguments

y

Incomplete data vector of length n

ry

Vector of missing data pattern (FALSE=missing, TRUE=observed)

x

Matrix (n x p) of complete covariates.

Value

• A vector of length nmis with imputations.

Warning

Imputing the mean of a variable is almost never appropriate. See Little and Rubin (1987).

References

Van Buuren, S., Groothuis-Oudshoorn, K. (2009) MICE: Multivariate Imputation by Chained Equations in R. Journal of Statistical Software, forthcoming. http://www.stefvanbuuren.nl/publications/MICE in R - Draft.pdf Little, R.J.A. and Rubin, D.B. (1987). Statistical Analysis with Missing Data. New York: John Wiley and Sons.

See Also

mice, mean