I see what you mean.
Sorry and thanks for pointing that out to me Ben.
bbolker wrote:
>
> B77S <bps0002 <at> auburn.edu> writes:
>
>>
>> I have never used that function, but I know that with read.csv() you can
>> do
>> the following to select only the columns you want:
>>
>> chosen_vars <- read.csv("Workbook1.csv", header=T)[c("variable1",
>> "variable3")]
>>
>
>
> This is not actually selectively importing: it's importing the
> whole thing and *then* selecting the relevant columns.
> If the original poster is trying to avoid importing the whole
> data set because (for example) it's got a gigantic number of
> columns and will be very slow and/or tax their system, then this
> idiom won't help.
>
> Ben Bolker
>
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