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The cosmological information contained in anisotropic galaxy clusteringmeasurements can often be compressed into a small number of parameters whoseposterior distribution is well described by a Gaussian. We present a generalmethodology to combine these estimates into a single set of consensusconstraints that encode the total information of the individual measurements,taking into account the full covariance between the different methods. Weillustrate this technique by applying it to combine the results obtained fromdifferent clustering analyses, including measurements of the signature ofbaryon acoustic oscillations (BAO) and redshift-space distortions (RSD), basedon a set of mock catalogues of the final SDSS-III Baryon OscillationSpectroscopic Survey (BOSS). Our results show that the region of the parameterspace allowed by the consensus constraints is smaller than that of theindividual methods, highlighting the importance of performing multiple analyseson galaxy surveys even when the measurements are highly correlated. This paperis part of a set that analyses the final galaxy clustering dataset from BOSS.The methodology presented here is used in Alam et al. (2016) to produce thefinal cosmological constraints from BOSS.

The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: combining correlated Gaussian posterior distributions