findSubexprs: findSubexprs

In nlsr: Functions for Nonlinear Least Squares Solutions - Updated 2022

findSubexprs

Description

Find common sub-expressions in expr.

Usage

findSubexprs(expr, simplify = FALSE, tag = ".expr", verbose = FALSE, ...)

Arguments

expr	An expression represented in a variety of ways. See Details.
simplify	Whether to simplify.
tag	to be attached to the returned object(s)
verbose	If TRUE, then diagnostic output will be printed as derivatives and simplifications are recognized.
...	Additional arguments, passed to nlsSimplify

.

Details

If expr contains repeated subexpressions, this function returns an expression to evaluate them just once and store them in temporary variables with names starting with the tag.

This function is used internally by codeDeriv.

Examples

findSubexprs(expression(x^2 + x^2), tag = ".example")

nlsr documentation built on Sept. 8, 2023, 5:48 p.m.