CovarianceWithMissing: Estimate covariance when data is missing

View source: R/CovarianceWithMissing.R

CovarianceWithMissingR Documentation

Estimate covariance when data is missing

Description

Ignoring missing values can lead to biased estimates of the covariance. Lounici (2012) gives an unbiased estimator when the data has missing values.

Usage

CovarianceWithMissing(x)

Arguments

x

matrix or data.frame, data with each row an observation and each column a variable.

Value

matrix, unbiased estimate of the covariance.

Author(s)

Stephen R. Haptonstahl srh@haptonstahl.org

References

High-dimensional covariance matrix estimation with missing observations. Karim Lounici. 2012.


FastImputation documentation built on Sept. 25, 2023, 5:06 p.m.