unpack: Unpack values
In klmr/unpack: Assign Vectors Elements to Separate Variables

The syntax c[...] = value unpacks the vector or list value into as many separate variables, specified as ..., as there are items.

1	c[...] = value

`...`	variable names to assign to.
`value`	vector or list to unpack.

The number of names in ... must match length(value). If there are too few or too many names, an error is raised.

An exception is made when the last name in ... is an index-less subset expression, i.e. name[]. In that case, the first N-1 elements from value are assigned to the first N-1 variable names, and the remaining elements are assigned to name.