[R] id & filter problems in data.frame

Christian Schulz c.schulz at metrinomics.de
Tue May 28 10:30:14 CEST 2002


Hi,
a questionaire data-set with more than one row for one Person make
me problems.

(1) i want create a function which count the used
row for the relevant id !
example:  
id  c.row
1    1
1    2
1    3
2    1
2    2
4    1
4    2
4    3
4    4
4    5

(2)  i have got a problem to filter & analyse , because the filter 
criteria is unlucky
a row above or under the ratings which i would like to analyse !

Thanks for any suggestions/starting point
Christian Schulz





Metrinomics GmbH
Fon: +49 (0)30  69 51 71 - 16
Fax: +49 (0)30  69 51 71 - 33
mailto:c.schulz at metrinomics.de
http://www.metrinomics.de









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