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These functions weight the variable x by
a specific vector of weights.
weight(x, weights, digits = 0)weight2(x, weights)
(Unweighted) variable
Vector with same length as x, which
contains weight factors. Each value of x has a
specific assigned weight in weights.
Numeric value indicating the number of decimal places to be
used for rounding the weighted values. By default, this value is
0, i.e. the returned values are integer values.
The weighted x.
weight2() sums up all weights values of the associated
categories of x, whereas weight() uses a
xtabs formula to weight cases. Thus, weight()
may return a vector of different length than x.
# NOT RUN {
v <- sample(1:4, 20, TRUE)
table(v)
w <- abs(rnorm(20))
table(weight(v, w))
table(weight2(v, w))
set.seed(1)
x <- sample(letters[1:5], size = 20, replace = TRUE)
w <- runif(n = 20)
table(x)
table(weight(x, w))
# }
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