Created
June 22, 2018 12:36
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Computing percentiles
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| percentile1 <- function(x) ecdf(x)(x) | |
| percentile2 <- function(x) rank(x)/length(x) | |
| library(tidyverse) | |
| out <- data_frame( | |
| x = rnorm(100000), | |
| ecdf = ecdf(x)(x), | |
| rank_len = rank(x)/length(x), | |
| same = near(ecdf, rank_len) | |
| ) | |
| x1 <- sort(rnorm(50, mean = .07, sd = .06)); x1 <- ifelse(x1 < 0, 0, x1) | |
| percentile1(x1) | |
| percentile2(x1) |
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