| # File src/library/stats/R/ppoints.R |
| # Part of the R package, https://www.R-project.org |
| # |
| # Copyright (C) 1995-2016 The R Core Team |
| # |
| # This program is free software; you can redistribute it and/or modify |
| # it under the terms of the GNU General Public License as published by |
| # the Free Software Foundation; either version 2 of the License, or |
| # (at your option) any later version. |
| # |
| # This program is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # A copy of the GNU General Public License is available at |
| # https://www.R-project.org/Licenses/ |
| |
| ppoints <- function (n, a = if(n <= 10) 3/8 else 1/2) |
| { |
| if(length(n) > 1L) n <- length(n) |
| if(n > 0) (1L:n - a)/(n + 1-2*a) else numeric() |
| } |