Data used to train and test 21cmGEM.
The folder includes 21-cm spectra as a function of redshift sampled at z = [5:0.1:50].

Training set includes 27,455 spectra. 
Testing set includes 2,186 spectra. 

Astrophysical parameters - a matrix of size n-by-7, where n is the number of cases and 7 is the number of parameters (in the following order):
fstar - star formation efficiency.
Vc -  minimum virial circular velocity in km/s.
fx - X-ray efficiency.
tau - CMB optical depth.
alpha - the slope of the X-ray spectrum.
nu_min - low cut-off of the X-ray spectrum.
Rmfp - mean free path of ionizing photons.