using R shiny server together with ggplot

Question

Am using ggplot to plot a pie chart as in the code below in RStudio and its working fine. the problem is when i want to use R shiny server.

indicatorTotals<-tapply(anc_data$Total,anc_data$Indicator,sum)
graphdatapie <- as.data.frame(indicatorTotals)
c <- ggplot(graphdatapie, aes(x=rownames(graphdatapie),y=indicatorTotals,fill = 
    indicatorTotals)) + geom_bar(width = 1,stat="identity")
print(c + coord_polar(theta = "y"))

the data is this format

                       indicatorTotals
ANC 1st visit                   248777
ANC 2nd visit                   231914
ANC 3rd visit                   162062
ANC 4th or more visits           99528

I get the following error message from the R shiny server ui.R.

Error:object 'graphdatapie' not found.

What could be the problem???

It would be good to include all the shiny code and some sample data so we can reproduce the problem. — Peter Fine, May 20 '13 at 09:36
@PeterFine, Thanks, i managed the problem by adding environment=environment() to the ggplot function — jonestats, May 20 '13 at 09:47
@jonestats could you add your findings as an answer, in this way this question will have value to the community. — Paul Hiemstra, May 20 '13 at 11:36
yes please add data, and answer.. this would be very very helpful http://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example — cdcaveman, May 20 '13 at 17:28

score 2 · Accepted Answer · edited May 21 '13 at 06:42

2

Add the following to the ggplot function: environment=environment() i.e

ggplot(graphdatapie, aes(x=rownames(graphdatapie),y=indicatorTotals,fill = 
             indicatorTotals), environment=environment())

Then restart the shiny-server. That will solve the problem.

edited May 21 '13 at 06:42

Paul Hiemstra

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answered May 21 '13 at 06:24

Timothy Tuti

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Thanks for adding the answer. However, @hadley already suggested a better approach than to add `environment=environment()`. Could you add his solution to your answer? – Paul Hiemstra May 21 '13 at 06:44

using R shiny server together with ggplot

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