Normalization of DISKBB component vs. height of the corona calculated from MCMC techniques for the six observations of 4U 1636–53. The Goodman-Weare algorithm was used with eight walkers and a total length of 10 000 steady-state samples for the simulation of each observation, with the initial 2000 chains removed to avoid an unstable state. For clarity, the 68%, 95%, and 99.7% confidence levels are indicated as the red solid line, black dashed line, and blue dotted line, respectively.