Greetings, hackers, Cedric sent me email indicating that dual axis telemetry is now available on the public server, and within five minutes I obtained this absolutely stunning example of co-varying sensor data:
<http://csdl.ics.hawaii.edu/~johnson/telemetry.jpg> (In my browser, I had to click on the image to render it full size.) Some particularly cool things to note: - I used Expert Mode, but the definitions are very straightforward. Six lines of code! (well, to be honest, the 'draw' command which is clipped in the figure makes seven.) - The chart layout is just about perfect. Note how the axis colors align with the telemetry stream colors. - The best part of all is the data! We're displaying real live data: build failures vs. code churn for the hackystat project over about a four month period. These are completely different sensor data types, but look how amazingly well they co-vary with each other. Kudos to Hongbing for the JFreeChart/hackyReport hacking, and to Cedric for the telemetry language improvements. TELEMETRY PLATE LUNCH CONTEST Now that we've got this new facility, I'm curious to see what you guys can come up with. So, for the next week only, I'll buy a plate lunch for every hackystat hacker who can generate a similarly interesting multi-axis telemetry chart! (Note that 'interesting' could mean data that co-varies together, such as this chart, or data that goes in opposite directions. And you're not just limited to two axes or data streams!) To enter, please use 'real' data such as that available on the public server, though it can be any project. Send me a pointer to a .jpg file illustrating your results. I will send out email with the contest results late next week once all the submissions are in. (Hackystat hackers not in Hawaii can still enter: I'll send you some macadamia nut cookies or something :-) Cheers, Philip
