tokens: We thank François Lanusse, Anthony Pullen, Alex Geringer-Sameth, Sébastien Fromenteau and Shirley Ho for useful discussions related to this work. We also thank Uroš Seljak, Emmanuel Schaan, David Spergel and the anonymous referee for helpful feedback on this work. We thank Martin White and Beth Reid for providing us halo catalogue from simulations. We also thank the SDSS-I/II/III and Planck collaboration for their efforts in providing the data sets used in this work. RM acknowledges the support of the Department of Energy Early Career Award programme. SS acknowledges support from John Peoples Jr Presidential Fellowship from Carnegie Mellon University. Some of the results in this paper have been derived using the healpix package (Górski et al. 2005 ). Funding for SDSS-III has been provided by the Alfred P. Sloan Foundation, the Participating Institutions, the National Science Foundation and the US Department of Energy Office of Science. The SDSS-III website is http://www.SDSS3.org/ . SDSS-III is managed by the Astrophysical Research Consortium for the Participating Institutions of the SDSS-III Collaboration including the University of Arizona, the Brazilian Participation Group, Brookhaven National Laboratory, Carnegie Mellon University, University of Florida, the French Participation Group, the German Participation Group, Harvard University, the Instituto de Astrofisica de Canarias, the Michigan State/Notre Dame/JINA Participation Group, Johns Hopkins University, Lawrence Berkeley National Laboratory, Max Planck Institute for Astrophysics, Max Planck Institute for Extraterrestrial Physics, New Mexico State University, New York University, Ohio State University, Pennsylvania State University, University of Portsmouth, Princeton University, the Spanish Participation Group, University of Tokyo, University of Utah, Vanderbilt University, University of Virginia, University of Washington and Yale University. Author Contributions . SS and RM contributed to the analysis and writing the paper. JB is an SDSS-III BOSS architect who contributed to the development of the BOSS survey.
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