Each record is a poker hand consisting of five cards drawn from a standard deck of 52. Each card is described using two attributes (suit and rank). Suites range from (1-4) and represent Hearts, Spades, Diamonds, and Clubs. Ranks range from (1-13) and represent Ace, 2, 3, ... , Queen, and King. Hand classes are coded as follows: 0: Nothing in hand; not a recognized poker hand 1: One pair; one pair of equal ranks within five cards 2: Two pairs; two pairs of equal ranks within five cards 3: Three of a kind; three equal ranks within five cards 4: Straight; five cards, sequentially ranked with no gaps 5: Flush; five cards with the same suit 6: Full house; pair + different rank three of a kind 7: Four of a kind; four equal ranks within five cards 8: Straight flush; straight + flush 9: Royal flush; (Ace, King, Queen, Jack, Ten) + flush Source: http://archive.ics.uci.edu/ml/datasets/Poker+Hand Dataset recommended by Robb Seaton: http://rs.io/2014/05/29/list-of-data-sets.html