Calculate the population variance or standard deviation of a vector.

var_pop(x)

sd_pop(x)

## Arguments

x (Numeric) vector.

## Value

The population variance or standard deviation of x.

## Details

Unlike var, which returns the sample variance, var_pop() returns the population variance. sd_pop() returns the standard deviation based on the population variance.

## Examples

data(efc)

# sampling variance
var(efc$c12hour, na.rm = TRUE) #> [1] 2581.152 # population variance var_pop(efc$c12hour)
#> [1] 2578.291

# sampling sd
sd(efc$c12hour, na.rm = TRUE) #> [1] 50.80504 # population sd sd_pop(efc$c12hour)
#> [1] 50.77687