Hello,
Sorry, I forgot the barplot.
dmelt <- melt(d, id.vars=c("Live", "Age"), measure.vars="Count")
wide <- dcast(Live ~ Age, data = dmelt)
col <- rainbow(4)
barplot(as.matrix(wide[, 2:5]), beside=T, col=col)
legend("topleft", wide[, 1], fill=col)
Hope this helps,
Rui Barradas
Em 18-07-2012 22:19, Rui Barradas escreveu:
Hello,
Install package 'reshape2' and try the following.
#install.packages('reshape2')
library(reshape2)
d <- read.table(text="
Live Age Count
Parents Age19 324
Another Age19 37
OwnPlace Age19 116
Group Age19 58
Other Age19 5
Parents Age20 378
Another Age20 47
OwnPlace Age20 279
Group Age20 60
Other Age20 2
Parents Age21 337
Another Age21 40
OwnPlace Age21 372
Group Age21 49
Other Age21 3
Parents Age22 318
Another Age22 38
OwnPlace Age22 487
Group Age22 25
Other Age22 9
", header=TRUE, stringsAsFactors=FALSE)
d
dmelt <- melt(d, id.vars=c("Live", "Age"), measure.vars="Count")
dcast(Live ~ Age, data = dmelt)
Hope this helps,
Rui Barradas
Em 18-07-2012 21:35, darnold escreveu:
Hi,
Entering data from a given file is the hardest part of learning R for me.
For example, I have this datafile from Moore's text:
Live Age Count
Parents Age19 324
Another Age19 37
OwnPlace Age19 116
Group Age19 58
Other Age19 5
Parents Age20 378
Another Age20 47
OwnPlace Age20 279
Group Age20 60
Other Age20 2
Parents Age21 337
Another Age21 40
OwnPlace Age21 372
Group Age21 49
Other Age21 3
Parents Age22 318
Another Age22 38
OwnPlace Age22 487
Group Age22 25
Other Age22 9
I can manually enter the numbers and create my table and barplot.
x <- matrix(c(324, 378, 337, 318, 37, 47, 40, 38, 116, 279, 372, 487, 58,
60, 49, 25, 5, 2, 3, 9), c(5,4),byrow=T)
rownames(x)=c("Parents","Another","OwnPlace","Group","Other")
colnames(x)=c("Age19","Age20","Age21","Age22")
x <- as.table(x)
barplot(x,beside=T)
But it would be nice to be able to read the data from the file,
arrange it
using R, then plot, if that is possible. Any suggestions?
Thanks
David
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