Add ability to analyse RVs from different instruments about kima HOT 7 CLOSED

• modify the Data class
  • probably still makes sense to be a singleton
  • watch out for performance, since we loop over the data a lot, what is the fastest way to store it?
  • ideally, the user should not need to worry about instrument names
  • ideally, input file should have a fourth column specifying the instrument
    • as an integer? a string? can we make it as general as possible?
• add between-instrument offsets as parameters
• add jitter parameters for each instrument (?)
  • GP hyperparameters should be common to all instruments

from kima.

from kima.

Working on this in the multi_instrument branch

from kima.

The Data class has two new load_multi methods, overloaded to deal with either:

• one input file with a 4th column specifying the instrument (as an integer)
• multiple input files, one per instrument, each with the 3 usual columns

from kima.

• automatically add number_instruments - 1 offset parameters
• same prior for all offsets, offsets_prior
• the user can change it
• by default is set to Uniform(-10, 10) (which doesn't make sense...)
• best is probably to set it to Uniform( - data.get_RV_span(), data.get_RV_span() )
• the plot_random_planets function now deals with the offsets, so kima-showresults rv/6 should work
• it worked once, might break every other time...

from kima.

I think this is ready in the multi_instrument branch. Going to merge it now into master.

from kima.

Done, closing this issue.

from kima.