atime_grid: Asymptotic timing grid

In atime: Asymptotic Timing

Asymptotic timing grid

Description

Create expressions for asymptotic timing by substituting values into expressions.

Usage

atime_grid(
  param.list = list(), 
  name.value.sep="=",
  expr.param.sep=" ",
  collapse = ",", 
  ...)

Arguments

param.list	Named list of items to replace in ... expressions, default empty list means nothing to replace.
name.value.sep	string: separator between names and values from param.list, default "=".
expr.param.sep	string: separator between expressions and parameters, default " ".
collapse	string: separator between parameters, default ",".
...	Named expressions which each must contain each name of param.list.

Value

Named list of expressions which can be used as expr.list argument of atime.

Author(s)

Toby Dylan Hocking

Examples

## Example 0: with no param.list, same as quote inside named list.
atime::atime_grid(m=mean(data), s=sum(data))
list(m=quote(mean(data)), s=quote(sum(data)))

## Example 1: polynomial vs exponential time regex.
(expr.list <- atime::atime_grid(
  list(PERL=c(TRUE, FALSE)),
  expr.param.sep="\n",
  regexpr=regexpr(pattern, subject, perl=PERL)))
atime.list <- atime::atime(
  N=unique(as.integer(10^seq(0,3.5,l=20))),
  setup={
    subject <- paste(rep("a", N), collapse="")
    pattern <- paste(rep(c("a?", "a"), each=N), collapse="")
  },
  expr.list=expr.list)
plot(atime.list)

atime documentation built on April 3, 2023, 5:30 p.m.