Calculate the population variance or standard deviation of a vector.
var_pop(x) sd_pop(x)
x | (Numeric) vector. |
---|
The population variance or standard deviation of x
.
Unlike var
, which returns the sample variance,
var_pop()
returns the population variance. sd_pop()
returns the standard deviation based on the population variance.
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