Problem building up ggplot graph in a loop.
A kind respondent mentioned that I gave no data for this data set. Here is a subset in CSV format: "","levels","m101","m101111" "1",0.15,0.00166736248903737,0.00525782746279257 "2",0.16,0.000671421429082792,0.00263263808833129 "3",0.17,0.000248914508386666,0.00125478603676572 "4",0.18,8.62700534705944e-05,0.000575729980347196 "5",0.19,2.71841670884316e-05,0.000251684211328049 Here is the CSV file. I hope it's OK to send it to the mailing list. Thanks again, KW --
On Feb 16, 2012, at 5:50 PM, Keith Weintraub wrote:
Folks,
I want to automate some graphing using ggplot.
Here is my code
graphChargeOffs2<-function(coffs) {
ggplot(coffs, aes(levels))
dataNames<-names(coffs)[!names(coffs) == "levels"]
for(i in dataNames) {
thisData<-coffs[[i]]
last_plot() + geom_line(aes(y = thisData, colour = i))
}
last_plot() + ylab("Total Chargeoffs")
}
coffs is a data.frame.
I get the following error:
Error in eval(expr, envir, enclos) : object 'thisData' not found
As little as I know about environments in R I am pretty sure that the geom_line in the loop is not able to see the thisData variable.
Any help you could provide would be appreciated. I would be surprised if there wasn't a way to pass the data into the geom_line function without using environments. Of course I have been wrong once or twice in the past. :)
Note that geom_line also can't see the input variable "coffs".
Thanks for any and all heo
--