arglist: Merge Argument Lists or Arguments

In KWB-R/kwb.utils: General Utility Functions Developed at KWB

Merge Argument Lists or Arguments

Description

Creates a list of arguments from given argument lists and arguments. This function allows to create argument lists for function calls. You may start with some basic argument list and then merge other argument lists or single argument assignments into this list. Merging means that elements of the same name are overriden and elements with new names are appended.

Usage

arglist(..., warn.on.NULL = FALSE)

Arguments

...	list of arguments to this function. All unnamed arguments are assumed to be argument lists which are merged using mergeLists first. All named arguments are then merged into this list.
warn.on.NULL	if TRUE (default is FALSE) a warning is given if any of the arguments given to this function is NULL

Value

merged list of arguments

See Also

callWith

Examples

# define some default arguments
args.default <- list(xlim = c(0, 10), ylim = c(0, 10), col = "red", lwd = 2)

# call plot with the default arguments
do.call(plot, arglist(args.default, x = 1:10))

# call plot with the default arguments but override the colour
do.call(plot, arglist(args.default, x = 1:10, col = "blue"))

KWB-R/kwb.utils documentation built on April 1, 2024, 7:12 a.m.