Functions to calculate percentiles
pn(y, p, na_rm = T, ...)
p10(y, na_rm = T, ...)
p25(y, na_rm = T, ...)
p75(y, na_rm = T, ...)
p90(y, na_rm = T, ...)
p95(y, na_rm = T, ...)
p99(y, na_rm = T, ...)
p25(1:3)
#> 25%
#> 1.5
p75(1:4)
#> 75%
#> 3.25
p99(0:100)
#> 99%
#> 99