Variability Index calculation error due to incorrect average power?

[harnbak]

Hi - thx for a great plugin.

Variability index (VI = the fraction of normalised power and average power) is sometimes calculated incorrectly.

For this strava activity: https://www.strava.com/activities/1149931366 VI is determined to be 1.12:

VI should have been 297 / 274 = 1.08:

This is also confirmed by Training Peaks:

Please investigate and let me know if more info is needed.

[harnbak]

It seems to me that average power as used by StravistiX is the problem.

In the first screenshot Avg Watts/Kg is calculated by StravistiX as 3.41.
My weight has been specified in StravistiX as 78 kg:

This implies that Avg Watts as used by Stravistix is 3.41 x 78 = 266.
VI is then calculated as 297 / 266 = 1.12 as confirmed by the first screenshot.

But average power is actually 274 W, please see second screenshot form Strava. This number is confirmed by Garmin Connect and Training Peaks.

[thomaschampagne]

@harnbak Thx for report and sry the delay of fixing

[harnbak]

Looks fine now, thx