Joint (below the diagonal) and marginal (in the diagonal) posterior distributions for the magnetic field strength, inclination, and azimuth in the LOS frame. The samples and histograms in green correspond to the inference using only Stokes Q and U, while those using only Stokes V are in gray. The analysis was carried out for a pixel with four compatible solutions, drawn in different colors in the upper diagonal panels. The solutions compatible with the full Stokes profiles are indicated with red circles.