[R] deleting specified NA values

Liaw, Andy andy_liaw at merck.com
Mon Nov 1 16:31:39 CET 2004

This sort of things are most likely covered in `An Introduction to R':

newDATA <- DATA[!is.na(DATA$age),]


> From:  Robert Brown FM CEFAS
> I have a data set of about 10000 records which was compiled 
> from several smaller data sets using SPSS. During compilation 
> 88 false records were accidentally introduced which comprise 
> all NA values.  I want to delete these records but not other 
> missing data.  The functions na.exclude and na.omit seem to 
> remove all values of NA? How can I delete just the relevant 
> NA's?  . i.e. I want to delete  all records in the data frame 
> DATA where the field age contains NA values
> Regards,
> Robert Brown
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