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categor
2003 May 06
2
Sum by categorical variable
Dear R-list,
I have two variables (numerical and categorical) and would like to have the
sum (and maybe some other statistics) of the numerical variable by the
categorical one.
Can you help me,
Thank you,
Fabrizio
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Fabrizio De Amicis
IT Department
Generali Information Technologies - (GIT)
Centro Galleria 2,
Via Cantonale
CH -