Wrap data into a named hemi list.
hemilist.wrap(data, hemi, hemilist = NULL)
something to wrap, typically some data for a hemisphere, e.g., a vector of morphometry data values. If NULL, the name will not be created.
character string, one of 'lh' or 'rh'. The name to use for the data in the returned list.
optional hemilist, an existing hemilist to add the entry to. If left at the default value `NULL`, a new list will be created.
named list, with the 'data' in the name given by parameter 'hemi'