sample_var function

Compute the sample variance

sample_var computes the sample variance, i.e. the sum of squared deviations of x from the mean divided by the total number of observations. This is in contrast to var, which computes an unbiased estimate of the variance (i.e. it divides the sum of squared deviations by n - 1).

sample_var(x, na.rm = FALSE)

Arguments

• x: Numeric vector
• na.rm: (logical) Should missing values be removed?

Returns

A single numeric value equal to the sample variance

Examples

data(anchoring)
sample_var(anchoring$everest_feet)