Multiple stacked barplots on the same graph?

This command works:

qplot(x=Categorie,y=Total,data=mydata,geom="bar",fill=Part)

for your data.

domenico vistocco

St?phane CRUVEILLER wrote:

Hi,

the same error message is displayed with geom="bar" as parameter.
here is the output of dput:

dput(mydata)

structure(list(Categorie = structure(c(1L, 12L, 8L, 2L, 5L, 7L,
16L, 6L, 15L, 11L, 10L, 13L, 14L, 3L, 4L, 9L, 17L, 1L, 12L, 8L,
2L, 5L, 7L, 16L, 6L, 15L, 11L, 10L, 13L, 14L, 3L, 4L, 9L, 17L
), .Label = c("Amino acid biosynthesis", "Biosynthesis of cofactors,
prosthetic groups, and carriers",
"Cell envelope", "Cellular processes", "Central intermediary metabolism",
"DNA metabolism", "Energy metabolism", "Fatty acid and phospholipid
metabolism",
"Mobile and extrachromosomal element functions", "Protein fate",
"Protein synthesis", "Purines, pyrimidines, nucleosides, and
nucleotides",
"Regulatory functions", "Signal transduction", "Transcription",
"Transport and binding proteins", "Unknown function"), class = "factor"),
   Part = structure(c(1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L,
   1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L,
   2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L), .Label = c("common",
   "specific"), class = "factor"), Total = c(3.03, 1.65, 1.52,
   2.85, 3.4, 11.81, 10.51, 1.95, 2.08, 2.51, 2.23, 7.63, 1.88,
   2.76, 7.21, 1.08, 20.75, 0.35, 0.17, 0.08, 0.18, 0.42, 2.05,
   1.98, 0.63, 0.17, 0.2, 0.3, 1.58, 0.27, 0.83, 1.38, 3.56,
   11.63), chr1 = c(4.55, 2.37, 1.77, 4.68, 3.19, 12.49, 13.56,
   2.81, 3.13, 4.58, 3.26, 7.3, 2.06, 3.41, 7.9, 0.22, 22.45,
   0.16, 0.06, 0.09, 0.19, 0.09, 0.7, 0.85, 0.22, 0.06, 0.03,
   0.32, 0.66, 0.06, 0.63, 0.38, 1.14, 6.17), chr2 = c(1.68,
   1.06, 1.55, 1.02, 4.57, 13.87, 7.85, 0.98, 1.06, 0.27, 1.2,
   9.88, 2.13, 2.53, 7.71, 0.4, 22.38, 0.71, 0.35, 0.09, 0.22,
   0.98, 3.9, 3.24, 0.22, 0.22, 0.49, 0.31, 2.79, 0.62, 1.33,
   1.95, 0.44, 16), pl = c(0, 0, 0, 0, 0, 0.17, 4.27, 1.03,
   0.34, 0, 0.68, 0.68, 0, 0.17, 1.54, 8.38, 5.3, 0, 0, 0, 0,
   0, 2.22, 3.25, 4.44, 0.51, 0, 0.17, 1.88, 0, 0, 4.62, 28.72,
   24.27)), .Names = c("Categorie", "Part", "Total", "chr1",
"chr2", "pl"), class = "data.frame", row.names = c(NA, -34L))


thx,

St?phane.

hadley wickham wrote:

On Dec 4, 2007 10:34 AM, St?phane CRUVEILLER
<scruveil at genoscope.cns.fr> wrote:

Hi,

I tried this method but it seems that there is something wrong with my
data frame:


when I type in:

 > qplot(x=as.factor(Categorie),y=Total,data=mydata)

It displays a graph with 2 points in each category...
but if  I add the parameter geom="histogram"

 > qplot(x=as.factor(Categorie),y=Total,data=mydata,geom="histogram")

Error in storage.mode(test) <- "logical" :
        object "y" not found

any hint about this...

Could you copy and paste the output of dput(mydata) ?

(And I'd probably write the plot call as: qplot(Categorie, Total,
data=mydata, geom="bar"), since it is a bar plot, not a histogram)