[R] Omitting members of a sequence

Stuart Luppescu slu at ccsr.uchicago.edu
Fri Feb 19 22:33:48 CET 2010


Hello, this is just a point of curiosity with me. I want a sequence of
numbers from 64 to 70, omitting the 2nd and 4th numbers. I can do it
these ways:

> seq(64, 70)[-c(2, 4)]
[1] 64 66 68 69 70

> foo <- 64:70
> foo[-c(2, 4)]
[1] 64 66 68 69 70

But how come this doesn't work?
> 64:70[-c(2, 4)]
[1] 64 65 66 67 68 69 70

Just wondering.
-- 
Stuart Luppescu -=- slu .at. ccsr.uchicago.edu        
University of Chicago -=- CCSR 
才文と智奈美の父 -=-    Kernel 2.6.30-gentoo-r5                
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