Hi,
I have a dataframe with 3 columns: month (1 to 12), length and length class.
I'm trying to make a cross table with the counts of lengths per length class
and month. I don�t have all classes per month.
| 1 2 3 ...
-------------
120 | 0 1 0
150 | 5 6 0
170 | 3 0 7
...
I have already tryed many commands, without success - unfortunately.
May someone help me? Thanks in advance!
Antonio Olinto
-------------------------------------------------
WebMail Bignet - O seu provedor do litoral
www.bignet.com.br
______________________________________________
[EMAIL PROTECTED] mailing list
https://www.stat.math.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
