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PortfolioAnalytics (version 2.0.0)

center: Center

Description

Center a matrix

Usage

center(x)

Value

matrix of centered data

Arguments

x

matrix

Details

This function is used primarily to center a time series of asset returns or factors. Each column should represent the returns of an asset or factor realizations. The expected value is taken as the sample mean.

x.centered = x - mean(x)