VAM vs Summary

[mute mutnig]

Hi, 

today training ride was up a mountain - by checking the VAM i am confused:

if I look at the summary I see 1h...631m VAM

if I look at the graph (CP set to VAM) it shows 545m VAM

why this difference?

thx

[Ale Martinez]

IIUC the code they are very, very, different animals:

1) VAM metric is Elevation Gain/Duration with proper units, so it is an average for the ride or the interval in question and it considers the hysteresis used to compute Elevation Gain: https://github.com/GoldenCheetah/GoldenCheetah/blob/cabe078453cbe8e136b8adf8d4187a5be878671b/src/Metrics/BasicRideMetrics.cpp#L2570

2) vam derived series used as data series in CP chart seems to be computed sample by sample and the only filter is a ceiling of 5 m per sample: https://github.com/GoldenCheetah/GoldenCheetah/blob/cabe078453cbe8e136b8adf8d4187a5be878671b/src/FileIO/RideFileCache.cpp#L1318