| # File src/library/stats/R/deriv.R |
| # Part of the R package, https://www.R-project.org |
| # |
| # Copyright (C) 1995-2012 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/ |
| |
| D <- function(expr, name) .External(C_doD, expr, name) |
| |
| deriv <- function(expr, ...) UseMethod("deriv") |
| |
| deriv.formula <- function(expr, namevec, function.arg = NULL, tag = ".expr", |
| hessian = FALSE, ...) |
| { |
| if((le <- length(expr)) > 1L) |
| .External(C_deriv, expr[[le]], namevec, function.arg, tag, hessian) |
| else stop("invalid formula in deriv") |
| } |
| |
| deriv.default <- function(expr, namevec, function.arg = NULL, tag = ".expr", |
| hessian = FALSE, ...) |
| .External(C_deriv, expr, namevec, function.arg, tag, hessian) |
| |
| deriv3 <- function(expr, ...) UseMethod("deriv3") |
| |
| deriv3.formula <- function(expr, namevec, function.arg = NULL, tag = ".expr", |
| hessian = TRUE, ...) |
| { |
| if((le <- length(expr)) > 1L) |
| .External(C_deriv, expr[[le]], namevec, function.arg, tag, hessian) |
| else stop("invalid formula in deriv") |
| } |
| |
| deriv3.default <- function(expr, namevec, function.arg = NULL, tag = ".expr", |
| hessian = TRUE, ...) |
| .External(C_deriv, expr, namevec, function.arg, tag, hessian) |
| |