extracting subset from a data frame

Mark Myatt · 2001-07-04T08:23:13Z

David White writes: >How can I subset a factor level out of a dataframe and into another? > >Ex. > token max1 max2 condition prop1 prop2 >879 n224ti10.10msmeanc 2928.516 6201.562 out of range 0.5273416 0.5454564 >880 n224ti11.10msmeanc 3100.781 6718.359 out of range 0.7369985 0.4668726 >881 n224tu01.10msmeanc 2928.516 6373.828 out of range 0.5116092 0.5293684 >18 n002tu06.10msmeanc 2756.250 7579.688 within range 0.5245017 0.4614441

Mark Myatt

Wed, Jul 4, 2001 1:23 AM

David White <dwhite at ling.ohio-state.edu> writes:

Use subset(). Something like:

        new.df <- subset(old.df, old.df$condition == "within range")

should so it. You may also use indexes:

        new.df <- old.df[old.df$condition == "within range",]

The last comma is important.

Mark


--
Mark Myatt


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extracting subset from a data frame

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