Hi, I am doing my way on R, with much experimenting. So, I am trying to plot a 3d graphic ussing "persp" and entering a data set (attached) of UTM coordinates as x,y and a pH values as z. However when I try an error message comes out telling that increasing x and y values are expected. Jus ordering the first vector does not help, and, of course, order the first two independently makes no sense since they are geographic coordinates. So, what I am doing wrong? Thank you all very much for the help,
Mario -- Dr. Mario A. Cozzuol Laborat�rio de Biologia Evolutiva Universidade Federal de Rond�nia BR 364, Km 9,5 78900-000 Porto Velho, RO Brasil Tel./Fax 55 69 217-8593 E-mail [EMAIL PROTECTED] ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
