[R] How to set a filter during reading tables

guox at ucalgary.ca guox at ucalgary.ca
Wed May 27 18:27:10 CEST 2009

We are reading big tables, such as,

Chemicals <-
= TRUE, sep = '\t', as.is =T)

I was wondering if it is possible to set a filter during loading so that
we just load what we want not the whole table each time. Thanks,


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