Gardener, Mark. Essential R, reference / Mark Gardener. - 1st ed. - Indianapolis, IN : Wiley Pub., Inc., 2012. - xxi, 554p. ISBN: 9781118391419 (pbk. : alk. paper) 1118391411 (pbk. : alk. paper) Subjects--Index Terms: R Programming Language Dewey Class. No.: 004.43R / GAR