Can we merge two graphs using any plugin?

[Vipul Jain]

Is there any additional plug in to merge two graphs, as we do have in Loadrunner.
I want to merge Throughput vs Time and Active threads vs Time graph into a single graph.

[Andrey Pohilko]

You can use Composite Graph to merge any timeline graphs into one.

Currently there is no composite graph for pivot charts. You may use Export to csv in both charts, then use Excel to plot the graph on exported data

[Adrian Speteanu]

Excel is very good for one timers, great looking graphs, but if you have to repeat the procedure often, it will slow you down considerably.  2007 & 2010 versions can take CSVs up to 1 million or more lines, but version 2003 can only work with 32,000 lines, which was pretty small compared to normal load tests.

The composite graph will merge pretty nicely all graphs plotting some sort of throughput with Response times over time, its very useful to see how the changes in throughput and response times are connected. And is much faster then Excel anyway.