Bubble chart: Gradient colour example

gistfile1.r

## Gradient colour example
library(googleVis)
bubbleChart <- gvisBubbleChart(Fruits, idvar="Fruit", xvar="Sales", 
                     yvar="Expenses", sizevar="Profit",
                     options=list(hAxis='{minValue:75,
			maxValue:125}', 
			width=500, height=300, 
                        colorAxis="{colors: ['lightblue', 'blue']}"),
			chartid="Bubble_Chart_colour_Axis"
			)
plot(bubbleChart)