I have the initial matrice:
> *data.frame(Subject=rep(100:101, each=4), Quarter=rep(paste("Q",1:4,
sep=""),2), Boolean = rep(c("Y","N"),4))*
Subject Quarter Boolean
1 100 Q1 Y
2 100 Q2 N
3 100 Q3 Y
4 100 Q4 N
5 101 Q1 Y
6 101 Q2 N
7 101 Q3 Y
8 101 Q4 N
...
>
And I would like to group the Subject by Quarter using as a result in the
table the value of the third variable (Boolean). The final result would
give:
Subjet Q1 Q2 Q3 Q4
1 100 Y Y Y Y
2 101 N N N N
...
>
I started using the *table(Subject, Quarter)* but can't find a way to
correspond the Boolean information in the table....
Thanks in advance for the ideas...
Pascal Candolfi
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