n_mean_var: Compute n, mean and variance

Description

Available for numeric, integer, and factor objects. character objects are handled by first converting to a factor.

Usage

n_mean_var(x, w = NULL, na.rm = FALSE, unwgt.var = TRUE)
# S4 method for numeric,missing
n_mean_var(x, w = NULL, na.rm = FALSE, unwgt.var = TRUE)
# S4 method for numeric,numeric
n_mean_var(x, w = NULL, na.rm = FALSE, unwgt.var = TRUE)
# S4 method for numeric,ANY
n_mean_var(x, w = NULL, na.rm = FALSE, unwgt.var = TRUE)
# S4 method for integer,missing
n_mean_var(x, w = NULL, na.rm = FALSE, unwgt.var = TRUE)
# S4 method for integer,numeric
n_mean_var(x, w = NULL, na.rm = FALSE, unwgt.var = TRUE)
# S4 method for integer,ANY
n_mean_var(x, w = NULL, na.rm = FALSE, unwgt.var = TRUE)
# S4 method for logical,missing
n_mean_var(x, na.rm = FALSE, unwgt.var = TRUE)
# S4 method for logical,numeric
n_mean_var(x, w = NULL, na.rm = FALSE, unwgt.var = TRUE)
# S4 method for logical,ANY
n_mean_var(x, w = NULL, na.rm = FALSE, unwgt.var = TRUE)
# S4 method for factor,missing
n_mean_var(x, w = NULL, na.rm = FALSE, unwgt.var = TRUE)
# S4 method for factor,numeric
n_mean_var(x, w = NULL, na.rm = FALSE, unwgt.var = TRUE)
# S4 method for factor,ANY
n_mean_var(x, w = NULL, na.rm = FALSE, unwgt.var = TRUE)
# S4 method for character,missing
n_mean_var(x, w = NULL, na.rm = FALSE, unwgt.var = TRUE)
# S4 method for character,numeric
n_mean_var(x, w = NULL, na.rm = TRUE, unwgt.var = TRUE)
# S4 method for character,ANY
n_mean_var(x, w = NULL, na.rm = FALSE, unwgt.var = TRUE)

Value

a list containing mean and var

Arguments

x: a vector of values
w: an optional vector of numeric weights or a vector convertible with numeric with `as.double()`.
na.rm: passed to sum
unwgt.var: Use unweighted or weighted covariance matrix