Dear list members,
I'm relatively new to this list; can anyone tell me how to declare
missing values once a dataset has been attached?
For example here:
VAR1
1 1
2 2
3 1
4 3
5 2
6 1
7 3
8 3
9 1
10 2
11 98
12 2
13 97
14 99
15 NA
16 3
I would like values 97, 98 and 99 to be treated as missing values.
I read everything about is.na but I just can't figure out how to do it.
Many thanks,
Adrian
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Adrian Dusa ([EMAIL PROTECTED])
Romanian Social Data Archive (www.roda.ro)
1, Schitu Magureanu Bd.
76625 Bucharest sector 5
Romania
Tel./Fax: +40 (21) 312.66.18
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