See ?[[ "[[" operates recursively, so sw[[2,1]] is the same as sw[[2]][[1]]
Giovanni > Date: Fri, 17 Oct 2003 12:30:07 -0400 > From: "Backlund, Jan Erik (JE)" <[EMAIL PROTECTED]> > Sender: [EMAIL PROTECTED] > Cc: > Precedence: list > > I am confused by the following difference in the behavior of R and S. Any > clarification would be greatly appreciated. > Jan Erik Backlund > Dow AgroSciences, LLC. > [EMAIL PROTECTED] > > > R : Copyright 2003, The R Development Core Team > Version 1.8.0 (2003-10-08) > > sw > Fertility Agriculture Examination Education Catholic > Courtelary 80.2 17.0 15 12 9.96 > Delemont 83.1 45.1 6 9 84.84 > Franches-Mnt 92.5 39.7 5 5 93.40 > Moutier 85.8 36.5 12 7 33.77 > Neuveville 76.9 43.5 17 15 5.16 > > sw[2,1] > [1] 83.1 > > sw[[2,1]] > [1] 17 > > > > and the corresponding behaviour in S > S-PLUS : Copyright (c) 1988, 2001 Insightful Corp. > S : Copyright Lucent Technologies, Inc. > Professional Edition Version 6.0.3 Release 2 for Microsoft Windows : 2001 > > sw > Fertility Agriculture Examination Education Catholic > Courtelary 80.2 17.0 15 12 9.96 > Delemont 83.1 45.1 6 9 84.84 > Franches-Mnt 92.5 39.7 5 5 93.40 > Moutier 85.8 36.5 12 7 33.77 > Neuveville 76.9 43.5 17 15 5.16 > > sw[2,1] > [1] 83.1 > > sw[[2,1]] > [1] 83.1 > > ______________________________________________ > [EMAIL PROTECTED] mailing list > https://www.stat.math.ethz.ch/mailman/listinfo/r-help > > > -- __________________________________________________ [ ] [ Giovanni Petris [EMAIL PROTECTED] ] [ Department of Mathematical Sciences ] [ University of Arkansas - Fayetteville, AR 72701 ] [ Ph: (479) 575-6324, 575-8630 (fax) ] [ http://definetti.uark.edu/~gpetris/ ] [__________________________________________________] ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
