Créer un histogramme

Bonsoir à tous,
Très grand débutant avec R (je ne connaissais pas ce logiciel il y a 10 minutes ), peut-on faire très facilement un histogramme à partir des classes et de leur effectif respectif ?
Code:

1 2 3 4 5 [180 ; 190[ : 2 [190 ; 200[ : 26 [200 ; 210[ : 35 [210 ; 220[ : 60 [220 ; 230[ : 7
Merci pour votre aide.

Bonjour,
En parcourant le forum (merci fabrice91 !), j'ai créé le tableau suivant :

Code:

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> classes<-seq(180,230,10)
> classes
[1] 180 190 200 210 220 230
> effectifs<-c(2,26,35,60,7,0)
> effectifs
[1]  2 26 35 60  7  0
> taille<-rep(classes,effectifs)
> taille
  [1] 180 180 190 190 190 190 190 190 190 190 190 190 190 190 190 190 190 190
 [19] 190 190 190 190 190 190 190 190 190 190 200 200 200 200 200 200 200 200
 [37] 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200
 [55] 200 200 200 200 200 200 200 200 200 210 210 210 210 210 210 210 210 210
 [73] 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210
 [91] 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210
[109] 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 220 220 220
[127] 220 220 220 220
> tableau<-cut(taille,classes,right=FALSE)
> tableau
  [1] [180,190) [180,190) [190,200) [190,200) [190,200) [190,200) [190,200)
  [8] [190,200) [190,200) [190,200) [190,200) [190,200) [190,200) [190,200)
 [15] [190,200) [190,200) [190,200) [190,200) [190,200) [190,200) [190,200)
 [22] [190,200) [190,200) [190,200) [190,200) [190,200) [190,200) [190,200)
 [29] [200,210) [200,210) [200,210) [200,210) [200,210) [200,210) [200,210)
 [36] [200,210) [200,210) [200,210) [200,210) [200,210) [200,210) [200,210)
 [43] [200,210) [200,210) [200,210) [200,210) [200,210) [200,210) [200,210)
 [50] [200,210) [200,210) [200,210) [200,210) [200,210) [200,210) [200,210)
 [57] [200,210) [200,210) [200,210) [200,210) [200,210) [200,210) [200,210)
 [64] [210,220) [210,220) [210,220) [210,220) [210,220) [210,220) [210,220)
 [71] [210,220) [210,220) [210,220) [210,220) [210,220) [210,220) [210,220)
 [78] [210,220) [210,220) [210,220) [210,220) [210,220) [210,220) [210,220)
 [85] [210,220) [210,220) [210,220) [210,220) [210,220) [210,220) [210,220)
 [92] [210,220) [210,220) [210,220) [210,220) [210,220) [210,220) [210,220)
 [99] [210,220) [210,220) [210,220) [210,220) [210,220) [210,220) [210,220)
[106] [210,220) [210,220) [210,220) [210,220) [210,220) [210,220) [210,220)
[113] [210,220) [210,220) [210,220) [210,220) [210,220) [210,220) [210,220)
[120] [210,220) [210,220) [210,220) [210,220) [220,230) [220,230) [220,230)
[127] [220,230) [220,230) [220,230) [220,230)
Levels: [180,190) [190,200) [200,210) [210,220) [220,230)
>

Mon problème, c'est que je ne sais pas comment utiliser ce tableau pour construire mon histogramme !
J'ai donc fait ceci :

Code:

> hist(taille,breaks=classes,main="",xlab="Taille",ylab="Effectif",col="magenta")

Malheureusement, cela ne fonctionne pas !
Merci.

Bonsoir,
Je pense avoir réglé le problème en modifiant le code de la manière suivante :

Code:

> hist(taille,breaks=classes,right=FALSE,main="",xlab="Taille",ylab="Effectif",col="magenta")

J'ai une autre question : comment modifier les unités graphiques sur les axes pour avoir, par exemple, 1cm pour 10 sur l'axe des ordonnées et 2cm pour 100 sur l'axe des abscisses ?
Merci.

Bonjour j'ai un soucis parce que j'aimerai tracer le même graphique suivant mais sur R (pour des raisons de simulation)
http://dl.free.fr/jze5I45LH

Est-ce possible de tracer sur R ou un autre logiciel que vous connaissez pour tracer le même graphique avec les valeurs suivantes :
Dans les valeurs suivantes, à chaque X correspond la valeur Y (pour ceux ou celles qui ne comprennent pas^^)

Code:

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X1	                Y1
16.14038442	0.011266399
16.49542245	0.011266399
16.85046048	0.019716198
17.20549851	0.033799196
17.56053654	0.067598392
17.91557457	0.101397589
18.2706126	        0.118297187
18.62565062	0.188712179
18.98068865	0.236594374
19.33572668	0.222511375
19.69076471	0.188712179
20.04580274	0.219694775
20.40084077	0.250677372
20.7558788	        0.225327975
21.11091683	0.129563586
21.46595485	0.168995981
21.82099288	0.166179381
22.17603091	0.154912983
22.53106894	0.08731459
22.88610697	0.076048191
23.241145	        0.042248995
23.59618303	0.028165997
23.95122106	0.030982597
24.30625908	0.016899598
24.66129711	0
25.01633514	0.008449799
25.37137317	0.005633199
25.7264112	        0
26.08144923	0.005633199
26.43648726	0

Ou encore :

Code:

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26.18841225	0

Merci pour votre aide.

Peace.

Mais je trouve le graphique suivant avec la première colonne de la seconde donnée : :(
http://dl.free.fr/jmLlFGhd6