Maybe this will help.
I do not know how to explain what a Gaussian is, but I am sure somebody will.
In the graph its not easy to know what to look for, but there are some programs, I think you can download them from the SETI site, who can report
things in a less mathematical way.
I think you can take a screenshot of the graph, there are many ways to do that, but remember that the program runs faster if you chose not to show the
graph.
The data is analysed by your computer, then, when it finishes that data unit, the result is uploaded to the SETI server to be further analysed, and a
new data unit is downloaded to be processed by your computer.
Now I have 922 data units, since May 18, 1999.

