Write function to create ideal_island_tbl and emperical_island_tbl from island_tbl

[richelbilderbeek]

Currently, plot_island_tbl works on an island_table, where the island_table does not yet separate for an omniscient/emperical observer. As far as I understand (see email exchange below), this is possible.

Email

From me: @richelbilderbeek

I was working on plot_island.

I feel I miss quite some information: where are the empirical and ideal data used by plot_island_tbl? sim_island used to return both. What do I overlook here?

From @joshwlambert:

The island_tbl is lower level than the ideal and empirical data. island_tbl is produced by sim_island and then the island_tbl is passed to create_daisie_data where the ideal and empirical data is created [...]

I just thought about the issue and I think it's not trivial. Ideally we would want to be able to plot the ideal and empirical data, but this is not available in the island_tbl and we want to use the information from island_tbl as this contains more information than the ideal and empirical data. Therefore I suggest we write a new function that is specifically designed to take the island_tbl and create an ideal_island_tbl and empirical_island_tbl that can be used specifically for plotting. What do you think?

[richelbilderbeek]

Maybe this is not in the coming release, but let's assign @joshwlambert as he knows how to split that data :-)

[joshwlambert]

@richelbilderbeek would you like me to write the functions to produce ideal_island_tbl and empirical_island_tbl?

[richelbilderbeek]

Hi @joshwlambert, definitely I'd prefer you to write the functions to produce ideal_island_tbl and empirical_island_tbl, as (1) you've done it before, (2) I have no ideas how you did it.

AFAICS, there is no rush (we focus on plot_island_tbl now), but I'd love to have it one day :-)

[joshwlambert]

Sure, happy to work on it. @richelbilderbeek What information should be in the ideal_island_tbl and empirical_island_tbl, the same as island_tbl or additional information to help with plotting?

[richelbilderbeek]

Great! I only need to have all the info in a not-too-obscure way, e.g. similar to island_tbl is fine [1].

• [1] I do miss the clades that went extinct in island_tbl, but we'll talk about that after the next release :-)

[joshwlambert]

Change of plans means these function are not going to be needed.