On 9/25/2008 7:43 AM, Stefan Fritsch wrote:
> Dear R Users,
>
> I want to exclude elements in a vector by:
>
> vector[-exclude]
>
> is it intended to cause an error if no elements are excluded?
>
>> vector <- 1:10
>> exclude <- NULL
>> vector[-exclude]
> Error in -exclude
>
> or am I just definig exclude wrong, if no elements should be excluded?
One approach would be to set "exclude" to a number greater than the
length of the vector:
x <- 1:10
exclude <- length(x) + 1
x[-exclude]
[1] 1 2 3 4 5 6 7 8 9 10
library(fortunes)
fortune("dog")
Firstly, don't call your matrix 'matrix'. Would you call your dog 'dog'?
Anyway, it might clash with the function 'matrix'.
-- Barry Rowlingson
R-help (October 2004)
> with kind regards,
>
> Stefan Fritsch
>
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--
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