Monday, March 31, 2008

Too much



I could give this type of info, but I spare you all the details. You are welcome. But some dude whose blog I won't be reading anymore gives about 4 charts and a week's worth of workout details.
OK OK I cannot resist giving you another example of this guy's obsessiveness. (Mario, Italian, now lives in Cupertino and works in the tech sector.... ya think ?) (he's been charting since 2003) And you all should be happy I don't blog how he does about my injuries. He has more info on his blog about his achilles injury than I could shake a willow stick at.

"According to my measurements, the road is 3.37 miles long (from the bridge to the stop sign), and gains 1290 feet. Due to its twisting nature and constantly changing grades, the local gradiometer readings should be considered approximate. Even though I measured the grade every 30-50 yards, I still did not capture all the bumps and undulations in the climb. I did a lot of guesswork to try to pick a sample that was representative of each segment.Altimeter altitude (Altitude linearly interpolated from altimeter samples, and smoothed with a 0.04mi gaussian.) Each horizontal line is 100 feet. Each vertical line is 0.2 miles.Gradiometer grade (Grade linearly interpolated from gradiometer samples, and smoothed with a 0.04mi gaussian.) Each horizontal line is 2% grade. Each vertical line is 0.2 miles.Altimeter grade (Grade linearly interpolated from altimeter samples, and smoothed with a 0.20mi gaussian.) Each horizontal line is 2% grade. Each vertical line is 0.2 miles.Comparison of grades (Green grade is from the gradiometer, magenta grade is from the altimeter, and white is where they overlap.) Each horizontal line is 2% grade. Each vertical line is 0.2 miles. Overall (averaging my first 20 hills), the gradiometer grade averages 0.63 (% grade) higher than the altimeter grade, with a standard deviation of 4.5 (% grade per road). This error may be due to:Uneven sampling -- I take more samples when the hill gets steep.Calibration error (of the gradiometer or altimeter). In the end, though, I think that each individual sample is accurate to within about 2% for that instantaneous segment of road. My results may not always agree with my altimeter, but they are generally repeatable within 1%. I think that I just need to take more samples to generate more accurate graphs"

Yes, Mario, exactly. I have been so disgusted by those inaccurate graphs, I could PUKE.

http://trimario.blogspot.com/ just in case you love the data



1 comment:

Anonymous said...

Well, this one leaves me (almost) speechless! Mario, Mario, Mario...Wow!!
On another note, Happy Birthday, Ann!!! We love you!! T, D and AL