Example corner plot of the best-fit parameters obtained from the fitting of a CCF profile of V1298 Tau with the Two-spots model. The red and green lines mark the median and the maximum-a posteriori values, respectively, while the dashed black lines are the 16^th and 84^th quantiles. The median ± 1σ values are reported in the title of each histogram. The latitude and longitude scales are in radians. log Z = 31005