makeArgument: Make argument object.
In jakobbossek/Rargs: Command line argument parser for R.

Make argument object.

1 2	makeArgument(name, shortcut = NULL, alias = NULL, is.flag = FALSE, default = NULL, type = NULL, required = FALSE, help)

`name`	[`character(1)`] Name of the argument.
`shortcut`	[`character(1)`] Shortcut name of the argument. Default is `NULL`, i. e., no shortcut.
`alias`	[`character`] Character vector of alias names for `name` argument. Default is `NULL`, i. e., no aliases at all.
`is.flag`	[`logical(1)`] Set this to `TRUE`, if the argument is a flag, i. e., it has no value.
`default`	[`any`] Default value for the argument. Keep in mind, that this must be of the corresponding `type`. If no default value is defined, which is the default, the user has to provide a value.
`type`	[`character(1)`] The type of the argument. Argument values are coerced to the type. Keep in mind, that this argument is neglected if `is.flag` is set to `TRUE`.
`required`	[`logical(1)`] Set this to `TRUE`, if the user must provide this argument. Default ist `FALSE`.
`help`	[`character(1)`] Helping text.