From: Peter Dalgaard <p.dalgaard_at_biostat.ku.dk>

Date: Thu 04 Aug 2005 - 07:34:10 EST

Date: Thu 04 Aug 2005 - 07:34:10 EST

Simone Gabbriellini <ogabbrie@tin.it> writes:

> Dear list,

*> can someone tell me why this two pieces of code give me the same
**> results?
**>
**> > for(i in 0:5){ sum[i] = i }
**> > sum
**> [1] 1 2 3 4 5
**>
**> > for(i in 1:5){ sum[i] = i }
**> > sum
**> [1] 1 2 3 4 5
**>
**> shouldn't the first one be
**>
**> 0 1 2 3 4 5
*

No. Indexing starts at 1 in R.

Next, figure out this:

*> sum=0
*

> for(i in 5:-5){ sum[i] = i }

*> sum
*

[1] -5 -5 -5 -5 -4

-- O__ ---- Peter Dalgaard ุster Farimagsgade 5, Entr.B c/ /'_ --- Dept. of Biostatistics PO Box 2099, 1014 Cph. K (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 ~~~~~~~~~~ - (p.dalgaard@biostat.ku.dk) FAX: (+45) 35327907 ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.htmlReceived on Thu Aug 04 07:37:05 2005

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