[R] how to read in only some columns of a data file

[liujb]

Hello,

I have a data file (.csv) that has a size of about 2.6 GB. I am not able to
read in the whole data set because of the memory limit. I actually only need
some columns (3 columns) of the data set, is there a way to read in
specified columns?

I am using windows. 

Thanks,
Julia
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