[ADJUST\]ESHOW AUTOCORR [Length] [/SPLIT] [/BURN Burn]
Plot the time correlation for the parameters, and compute the autocorre-
lation length up to the specified Length (default 100). "Burn" is the
number of steps which must be ignored at the beginning of the EMCEE
chain before performing the action. Default is 50. /SPLIT option will
compute this for each chain instead of globally.