packList function

Pack a List with Objects

Pack a list with existing objects using names only.

packList(stuff, target="PBSlist", value, penv=NULL, tenv=.PBSmodEnv)

Arguments

• stuff: character -- vector of object names
• target: character -- name of target list object
• value: numeric|character -- an optional explicit value to assign to stuff
• penv: environment -- source environment (default=parent) or user-specified environment where stuff resides
• tenv: environment -- target environment where target list exists or will be located

Details

A list object called target will be located in the tenv environment. The objects named in stuff and located in the penv environment will appear as named components within the list object target.

If an explicit value is specified, the function uses this value instead of looking for local objects. Essentially, stuff = value

which is then packed into target.

Note

The function determines the parent environment from within. This environment contains the objects from which the function copies to the target environment. Alternatively, the user can specify the environment where stuff resides.

Returns

No value is returned

Author(s)

Rowan Haigh, Program Head -- Offshore Rockfish

Pacific Biological Station (PBS), Fisheries & Oceans Canada (DFO), Nanaimo BC

locus opus: Institute of Ocean Sciences (IOS), Sidney BC

Last modified Rd: 2019-03-12

See Also

In package PBSmodelling:

unpackList, readList, writeList

Accessor functions:

tget, tcall, tprint, and tput

Examples

local(envir=.PBSmodEnv,expr={
  fn = function() {
    alpha=rnorm(10)
    beta=letters
    gamma=mean
    delta=longley
    packList(c("alpha","beta","gamma","delta")) }
  fn(); tprint(PBSlist)
})