Constraints on the real-space power spectrum. The lower panel shows the relative difference with the fiducial model. The black dots give our estimates of the binned real-space power spectrum taken from the median of the Markov chain. Overplotted is the fiducial model adopted in this study (black dashed curve). We find agreement with the best-fit model using VIPERS data by Rota et al. (in prep.) (purple dot-dashed curve). The pink dashed curve is the mean of the power spectrum estimates taken from the 27 mock catalogues. We present three error estimates: the internal chain variance determined from VIPERS data (grey steps), the chain variance determined from mock catalogues (blue steps) and the variance of the individual estimates from the 27 mock catalogues (red steps). The error corridors show 70% confidence intervals.