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