%0 Journal Article %J \mnras %D 2021 %T Primordial non-Gaussianity from the completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey - I: Catalogue preparation and systematic mitigation %A Rezaie, Mehdi %A Ross, Ashley J. %A Seo, Hee-Jong %A Mueller, Eva-Maria %A Percival, Will J. %A Merz, Grant %A Katebi, Reza %A Bunescu, Razvan C. %A Bautista, Julian %A Brownstein, Joel R. %A Burtin, Etienne %A Dawson, Kyle %A Gil-Marín, Héctor %A Hou, Jiamin %A Lyke, Eleanor B. %A de la Macorra, Axel %A Rossi, Graziano %A Schneider, Donald P. %A Zarrouk, Pauline %A Zhao, Gong-Bo %K Astrophysics - Cosmology and Nongalactic Astrophysics %K Computer Science - Machine Learning %K inflation %K large-scale structure of the Universe %K Physics - Computational Physics %K Physics - Data Analysis %K Statistics and Probability %B \mnras %V 506 %P 3439-3454 %8 sep %G eng %R 10.1093/mnras/stab1730