controling size of Bubble chart's circle using googleVis in R

Question

I did it using googleVis

> library(googleVis)

> trees2<-trees

>trees2$id<-as.character(1:31)

> Bubble<-gvisBubbleChart(trees2,idvar="id",xvar="Girth",yvar="Height",sizevar="Volume",options=list(vAxis="{title:'height'}",hAxis="{title:'Girth'}"))

> plot(Bubble)

and I had a chart but the circles are too large;;

Is there a way to control the size of the circle just like the symbols function?

Answer 1

You can use the sizeAxis option

library(googleVis    
trees2<-trees    
trees2$id<-as.character(1:31)    
Bubble<-gvisBubbleChart(trees2, idvar="id", xvar="Girth" ,yvar="Height",sizevar="Volume"
                        , options=list(vAxis="{title:'height'}",hAxis="{title:'Girth'}", sizeAxis = '{minValue: 0,  maxSize: 10}'))    
plot(Bubble)

Full list of options are given here.