[R] Help Creating a Stacked Bar Chart with Color Coding

[Wu Gong]

It is a little complicate for me to transform the table. Hope it works for
you.

x <- read.table(textConnection("Johnson     4    
Smith        4
Smith        2
Smith        3
Garcia       1
Garcia       4
Rodriguez   2
Adams       2
Adams       3
Adams       4
Turner       4
Turner       3 "),header=F)
## sort data
x<-x[order(x[,1],-x[,2]),]
## add another column to be the index used for reshape
x$times<-sequence(rle(as.character(x[,1]))$lengths)

y <- t(reshape(x, timevar="times", idvar="V1", direction="wide"))
colnames(y)<-y[1,]

barplot(y[-1,],col=27:29)

-----
A R learner.
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