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We present the analysis of the full shape of anisotropic clusteringmeasurement from the extended Baryon Oscillation Spectroscopic Survey (eBOSS)quasar sample together with the combined galaxy sample from the BaryonOscillation Spectroscopic Survey (BOSS), re-analysed using an updated recipefor the non-linear matter power spectrum and the non-local bias parameters. Weobtain constraints for flat $\Lambda$CDM cosmologies, focusing on thecosmological parameters that are independent of the Hubble parameter $h$. Ourrecovered value for the RMS linear perturbation theory variance as measured onthe scale of $12\,{\rm Mpc}$ is $\sigma_{12}=0.805\pm 0.049$, while using thetraditional reference scale of $8\,h^{-1}{\rm Mpc}$ gives $\sigma_{8}=0.815\pm0.044$. We quantify the agreement between our measurements and the latest CMBdata from Planck using the suspiciousness metric, and find them to beconsistent within $0.64 \pm 0.03\sigma$. Combining our clustering constraintswith the $3\times2$pt data sample from the Dark Energy Survey (DES) Year 1release slightly degrades this agreement to the level of $1.54 \pm 0.08\sigma$,while still showing an overall consistency with Planck. We furthermore studythe effect of imposing a Planck - like prior on the parameters that define theshape of the linear matter power spectrum, and find significantly tighterconstraints on the parameters that control the evolution of densityfluctuations. In particular, the combination of low-redshift data sets prefersa value of the physical dark energy density $\omega_{\rm DE}=0.335 \pm 0.011$,which is 1.7$\sigma$ higher than the one preferred by Planck.

Cosmological implications of the full shape of anisotropic clustering measurements in BOSS and eBOSS