Data values.
A vector of numeric values, for which the median or quantiles are required.

w

Weights.
A vector of nonnegative numbers, of the same length as x.

probs

Probabilities for which the quantiles should be computed.
A numeric vector of values between 0 and 1.

na.rm

Logical. Whether to ignore NA values.

Value

A numeric value or vector.

Details

The ith observation x[i] is treated as having
a weight proportional to w[i].

The weighted median is a value m
such that the total weight of data to the left of m
is equal to half the total weight.
If there is no such value, linear interpolation is performed.