View source: R/weighted.cov2.R
weighted.cov2 | R Documentation |
Computes a matrix of weighted covariances between the columns of x
and the columns of y
.
weighted.cov2(x, y = NULL, weights = NULL, na.rm = FALSE)
x |
a data frame of numeric vectors |
y |
an optional data frame of numeric vectors. Default is NULL, which means that covariances between the columns of |
weights |
numeric vector of weights. If NULL (default), uniform weights (i.e. all equal to 1) are used. |
na.rm |
logical, indicating whether NA values should be silently removed before the computation proceeds. Default is FALSE. |
a matrix of covariances
Nicolas Robette
weighted.cov
data(Movies)
weighted.cov2(Movies[,c("Budget", "Critics", "BoxOffice")], weights = rep(c(.8,1.2), 500))
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