Live average or current average along a ride?

[Ignacio Sanz]

Hello, I would like to create a metric that shows the average of a metric up to that moment throughout a ride?
For example, for a 6 hour ride, that it shows the average speed when I had covered the first hour, the average after two hours, the average for three hours and so on...
Nowadays this is more or less what I see with TSS in the "stress" tab for cycling, I can see how TSS "acumulates" throughout the ride, is this possible for average power or speed for example?

Thanks

[Ale Martinez]

Yes, the easiest way is to add a User Data curve to Activitiy chart as explained in https://github.com/GoldenCheetah/GoldenCheetah/wiki/UG_ChartTypes_Activities#user-data-curves,

in this case the formula in km/h can be something like: 3600*DISTANCE/SECS 

[Joachim Kohlhammer]

I have a User Chart with formulas all like

{

relevant {

Data contains "P";

}

finalise {

xx <- samples(SECS);

s <- samples(POWER);

yy <- sapply(s, { sum(head(s, i)) / i; });

}

x { xx; }

y { yy; }

}

[Ale Martinez]

El viernes, 3 de abril de 2026 a la(s) 5:05:42 a.m. UTC-3, tiefgara...@gmail.com escribió:

I have a User Chart with formulas all like

{

relevant {

Data contains "P";

}

finalise {

xx <- samples(SECS);

s <- samples(POWER);

yy <- sapply(s, { sum(head(s, i)) / i; });

this can be vectorized for better performance as: yy <~ cumsum(s)/xx;  

[Joachim Kohlhammer]

This is awesome! The chart is now basically instant :)