vosjo / emcmass

Stand alone Markov chain Monte Carlo script to estimate masses for main-sequence stars based on atmospheric parameters.

Hi there 👋

I am a scientist with an education in Astrophysics. I am an end-to-end data scientist and worked on projects covering the entire path from problem definition, data acquisition, data reduction and cleaning, hypothesis testing, model creation and testing, and reporting on the results. Below you can find a few python packages for the aquisition and modeling of astronomical data that I have developed during my career in astronomy.

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emcmass's Issues

IndexErrors running emcmass

Hi vosjo,

I was hoping to run the emcmass tool, but I am coming up against the following issue (either when I use the command-line or input file version) -- this is returned:

Traceback (most recent call last):
File "/Users/jolovell/anaconda3/envs/astroJBL/bin/emcmass", line 8, in
sys.exit(main())
File "/Users/jolovell/anaconda3/envs/astroJBL/lib/python3.10/site-packages/emcmass/emcmass.py", line 181, in main
results, samples = mcmc.MCMC(variables, limits, y, yerr, return_chain=True,
File "/Users/jolovell/anaconda3/envs/astroJBL/lib/python3.10/site-packages/emcmass/mcmc.py", line 154, in MCMC
grid = models.prepare_grid(evolution_model=model, variables=variables,
File "/Users/jolovell/anaconda3/envs/astroJBL/lib/python3.10/site-packages/emcmass/models.py", line 77, in prepare_grid
all_variables = fits.getdata(files[0]).dtype.names
IndexError: list index out of range

This is the same if I use the Solar parameters used in the example, or indeed any parameter set that I provide. I have updated emcee to the latest install. I wonder if this could be another dependency issue, or if you have seen this before and know how to get this to run?

Cheers
Josh