“R for beginners”是一本公认的经典手册，非常适合R的初学者。英文原版初著于2002年，此稿是基于作者在2005年重修修订的第二版-"R for beginners" is a recognized classic handbook, R is ideal for beginners. Beginning with the original English version in 2002, this draft is based on the author rebuilt revi