Hi,
I want to create a graph, combining bar graph and line graph into one. It is
commonly called S-curve graph. My data is shown below:

Apr-08 May-08 Jun-08 July-08
Number of Frogs 100 200 30 0
Number of Snake 50 20 60 0

Cumulative total 150 370 460 460

So the bar graph (histogram) is for the number of frogs and snake per month
while the line graph is for the cumulative total per month.


Pls help. Thanks!