[ADJUST\]EMCEE [Data Command] [/BEGIN] [/BOUNDS Par Low Up [...]] /LENGTH Length [/PARAMETERS Va Vb Vc ...] [/START A1 B1 C1 ...] [/STEP A2 B2 C2 ...] [/WALKERS NWalk] Specify the length of the MCMC chain. The total number of executions will be the Length times the number of parameters times the number of walkers per parameter. Length is the only control allowed to change when restarting a MCMC chain.