Hello alexandre,
what you are trying to do is *not* an histogram (as a density
estimator), if you divide each bar in 3, the surfaces of a won't sum to 1.
However a barplot or a barplot2 (in package gplots, bundle gregmisc)
would do the trick.
See graph 54 on the graph gallery :
http://addictedtor.free.fr/graphiques/RGraphGallery.php?graph=54
BTW, don't call your vector 'c' unless you want funny things to happen
Romain
Le 03.06.2005 18:14, Depire Alexandre a écrit :
Hello,
I have three sample, for example
a<-c(10,20,10,20,30)
b<-c(10,20,20,30,30)
c<-c(20,20,10)
I would like to have only one histogram with these series,
I try the following code:
hist(a)
hist(b,add=TRUE,col="red")
hist(c,add=TRUE,col="green")
but it's not that I want
I would like an histogram with, from left to right, count of "10" for "a",
count of "10" for "b", count of "10" for "c", count of "20" for "a", count of
"20" for "b", ... not overlapped
Thanks
--
visit the R Graph Gallery : http://addictedtor.free.fr/graphiques
~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~
~~~~~~ Romain FRANCOIS - http://addictedtor.free.fr ~~~~~~
~~~~ Etudiant ISUP - CS3 - Industrie et Services ~~~~
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~~~~ Stagiaire INRIA Futurs - Equipe SELECT ~~~~
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