R help - Dec 2007 - Multiple stacked barplots on the same graph?

Dear R-Users,

I would like to know whether it is possible to draw several
stacked barplots (i.e. side by side on the same sheet)...


my data look like :

                            Cond1  Cond1' Cond2   Cond2'
Compartment 1    11,81    2,05    12,49    0,70   
Compartment 2     10,51    1,98    13,56    0,85
Compartment 3     1,95    0,63    2,81    0,22  
Compartment 4     2,08    0,17    3,13    0,06   
Compartment 5     2,51    0,20    4,58    0,03

ps: Cond1' values should be stacked on Cond1, Cond2' on Cond 2 and so 
on... and series 1 and 2
should be side by side for each compartement....

Thanks for any help.

St?phane.

-- 
"La science a certes quelques magnifiques r?ussites ? son actif mais
? tout prendre, je pr?f?re de loin ?tre heureux plut?t qu'avoir
raison."
D. Adams
-- 
AGC website <http://www.genoscope.cns.fr/agc>
	St?phane CRUVEILLER Ph. D.
Genoscope - Centre National de S?quencage
Atelier de G?nomique Comparative
2, Rue Gaston Cremieux CP 5706
91057 Evry Cedex - France
Phone: +33 (0)1 60 87 84 58
Fax: +33 (0)1 60 87 25 14
scruveil at genoscope.cns.fr

St?phane CRUVEILLER <scruveil <at> genoscope.cns.fr> writes:
> I would like to know whether it is possible to draw several
> stacked barplots (i.e. side by side on the same sheet)...
> 
> my data look like :
> 
>                             Cond1  Cond1' Cond2   Cond2'
> Compartment 1    11,81    2,05    12,49    0,70   
> Compartment 2     10,51    1,98    13,56    0,85
> Compartment 3     1,95    0,63    2,81    0,22  
> Compartment 4     2,08    0,17    3,13    0,06   
> Compartment 5     2,51    0,20    4,58    0,03
> 
> ps: Cond1' values should be stacked on Cond1, Cond2' on Cond 2 and
so
> on... and series 1 and 2
> should be side by side for each compartement....
Check the following example on xyplot/lattice:

barchart(yield ~ variety | site, data = barley,
         groups = year, layout = c(1,6), stack = TRUE, 
         auto.key = list(points = FALSE, rectangles = TRUE, space =
"right"),
         ylab = "Barley Yield (bushels/acre)",
         scales = list(x = list(rot = 45)))

You have to reformat your data to the long format first for this, e.g. by using
reshape.

Comp  Cond  x
1     1     11.81
1     2      2.05

With allow.multiple=TRUE, it might be possible to avoid the reformatting, but I
never have used that form, because I the "long" had many advantages.

Dieter

Perhaps this could be useful:
 > x=scan()
11.81 10.51  1.95  2.08  2.51  2.05  1.98  0.63  0.17  0.20
12.49 13.56 2.81  3.13  4.58  0.70  0.85  0.22  0.06  0.03

 > x=matrix(x,5,4,byrow=T)
 > rownames(x)=paste("comp",1:5,sep="")
 > colnames(x)=paste("c",1:4,sep="")

 > library(ggplot2)
 > dfm=melt(x)
 > qplot(as.factor(x=X1),y=value,geom="histogram",data=dfm,fill=X2)

domenico vistocco

St?phane CRUVEILLER wrote:
> Dear R-Users,
>
> I would like to know whether it is possible to draw several
> stacked barplots (i.e. side by side on the same sheet)...
>
>
> my data look like :
>
>                             Cond1  Cond1' Cond2   Cond2'
> Compartment 1    11,81    2,05    12,49    0,70   
> Compartment 2     10,51    1,98    13,56    0,85
> Compartment 3     1,95    0,63    2,81    0,22  
> Compartment 4     2,08    0,17    3,13    0,06   
> Compartment 5     2,51    0,20    4,58    0,03
>
> ps: Cond1' values should be stacked on Cond1, Cond2' on Cond 2 and
so
> on... and series 1 and 2
> should be side by side for each compartement....
>
> Thanks for any help.
>
> St?phane.
>
>