Displaying 1 result from an estimated 1 matches for "menarini".
Did you mean:
marini
2003 May 06
3
FW: Sum by categorical variable
...the following command
j2<-xf1[1:10,"V4"]
I have
> j2
[1] CHROMOLI LINEAGERMAI RINALDI GIUNTIMA
AUTOSTELLA
[6] CAIZZONE CENTRO B PEL E C SNC CONSORZI MAN NORD
PDM
1304 Levels: MACHIAVELLI Snc MENARINI MANUFACTURERS LOGISTICS SERVICES
... ZUCCHERIFICIO DEL MOLISE
Why j2 has 1304 Levels (I know that xf has 1304 rows)? How can I obtain a
vector of 10 elements?
Thank you
>
>
> ---------------------------------------------------------------
> Fabrizio De Amicis
>
> IT De...