Corner plot of the posterior probability densities from the two analyses. The full sample analysis is shown in magenta, while the flux-limited sample analysis is shown in blue. The histograms on the diagonal represent the marginalised posterior probability densities constructed from the posterior samples, with the solid vertical lines marking the medians and the vertical dashed lines delimiting the symmetric 90% credible interval (i.e. the 5^th and the 95^th percentiles – note that these are not shown if they differ by less than one bin size from the nearest edge of the allowed range). The contours in the remaining panels show the one, two, three and four sigma credible areas from the two-dimensional marginalised joint posterior probability densities, with the dots showing the intersections of the medians of the corresponding one-dimensional marginalised posterior probability densities.