33rd regular meeting

5 ppl attending

open exchange

happened.
very full conference, great fun for those attending
two sessions interesting to computational archaeology, we would like to hear more about:

Clemens recommends a blogpost: https://jcarroll.com.au/2023/08/18/taking-from-infinite-sequences
Clemens example:
- using Haskell and repl as an interactive compiler
- you can ask for an infinite number and it just starts counting
- can be nice for indexing -> give a list concrete indices
- we don’t have to count anymore, how many indices we need, we can just ask it to stop when our list is done being indexed
- manipulation of infinite lists can’t be done in every language -> but you can do that in Haskell by mapping for this infinite list ,
  - e.g. to get only a list of even numbers (by doubling all entries)
  - and then you can just get the first ten entries and because Haskell is lazy it will then only calculate the first ten values
- you can do the same in R via recursion (R doesn’t have infinitive data structures by default) and then measure how deep we are in the recursion to “stop” at a certain point (like take the ten first values)
- but be careful with sys.calls (if your environment is not clean, this will not get you the correct number, because you’ve already done a few sys calls)
- R is a lazy language which makes it in theory sometimes very efficient
comments:
- lazyness can be interesting by database queries
- it’s more a fun exercise to learn more about the quirks of a language ;-)

on chat.archaeo.social there are e.g. jobs-channel, resource-channel -> check out the links postet there, there is some activity
joined forces with other computational archaeology groups like Rchaeology
please make an account and request access to the SIG SSLA channel either on the social platform or via Email to Clemens or Sophie (tell us your username for archaeo.social then)
deadline: WE WILL CLOSE DOWN SLACK IN 2 MONTH!