Radio Galaxy Dataset This Radio Galaxy Dataset is a collection and combination of several catalogues using the FIRST radio galaxy survey [1]. To the images from the FIRST radio galaxy survey the following license applies: "Provenance: The FIRST project team: R.J. Becker, D.H. Helfand, R.L. White M.D. Gregg. S.A. Laurent-Muehleisen. Copyright: 1994, University of California. Permission is granted for publication and reproduction of this material for scholarly, educational, and private non-commercial use. Inquiries for potential commercial uses should be addressed to: Robert Becker, Physics Dept, University of California, Davis, CA 95616: Further, the following catalogues are included in this dataset: MiraBest [2] Gendre [3-4] Capetti 2017a [5] Capetti 2017b [6] Baldi 2018 [7] Proctor [8] The dataset contains the following number of samples per class. Classses/split FRI FRII Compact Bent Total 5-fold cross train 316 659 232 198 1405 5-fold cross valid 79 165 59 50 353 test 100 100 100 100 400 total 495 924 391 348 2158 References [1] R. H. Becker, R. L. White, D. J. Helfand, The FIRST Survey: Faint Images of the Radio Sky at Twenty Centimeters, The Astrophysical Journal 450 (1995) 559. [2] H. Miraghaei, P. N. Best, The nuclear properties and extended morphologies of powerful radio galaxies: the roles of host galaxy and environment, Monthly Notices of the Royal Astronomical Society (2017) stx007. [3] M. A. Gendre, P. N. Best, J. V. Wall, The combined nvss-first galaxies (config) sample - ii. comparison of space densities in the fanaroff-riley dichotomy, Monthly Notices of the Royal Astronomical Society (2010). [4] M. A. Gendre, J. V. Wall, The combined nvss-first galaxies (config) sample - i. sample definition, classification and evolution, Monthly Notices of the Royal Astronomical Society (2008). [5] A. Capetti, F. Massaro, R. D. Baldi, Fricat: A first catalog of fr i radio galaxies, Astronomy & Astrophysics 598 (2017) A49. [6] A. Capetti, F. Massaro, R. D. Baldi, Friicat: A first catalog of fr ii radio galaxies, Astronomy & Astrophysics 601 (2017) A81. [7] R. D. Baldi, A. Capetti, F. Massaro, Fr0cat: a first catalog of fr 0 radio galaxies, Astronomy & Astrophysics 609 (2017) A1. [8] D. D. Proctor, Morphological annotations for groups in the first database, The Astrophysical Journal Supplement Series 194 (2011) 31.