Is it possible to calculate BS-RAC for BOINC Combined by adding up BS-RACs of different projects. I have several CPID swings and each swing seems to cause strange values for my total BS-RAC for BOINC Combined, while project accumulated RAC doesn't have that kind of problem (I suppose it is generated by adding up specific project's RACs).

The BS-RAC would still swing when a project changes CPID. It would still loose or gain all the BS-RAC from the project.

I don't think it would change much.

Yes, it will swing and loose / gain as CPID changes, but once CPID issue resolves it will then goes back to complete sum of project's BS-RACs, and that doesn't happen right now. My BOINC Combines BS-RAC is still not equal to sum of projects' BS-RACs.

If nothing else maybe this is possible?...
http://boincstats.com/forum/forum_thread.php?id=3115

But whatever you do, BOINCstats is really an excellent service to all BOINCsters, and I would like to thank you that!

When adding all project BS-RAC's, the RAC would get a little bit lower on a day with a split CPID, because the RAC for that project isn't added.

Now, however, you'll get a huge negative combined RAC for that day, as your total credit decreases very much. And two months later, you get a huge spike because the credit of two months ago was very low. This will stay in the RAC chart for another two months, so you cant view your RAC chart properly for four months because of one split CPID.

So IMHO this would be a great improvement.