I am trying out the newest LBT tools on a test box for a daylight analysis and noticed that the UDI, UDIlow, UDIhigh does not sum to 100%
Each is % of occupied hours within each range so I thought adding the three would sum to 100% but it’s summing up to 94%. Where is the other 6% of occupied hours?
I’ve tried adding in schedules but the same issue.
Have I missed something very obvious? Attached is the sample gh script and rhino with the box.
Thanks for looking into it. See your averages sums to 99.99% which makes sense as it’s close to 100%. Not sure why mine is 94%. Doing it individually, also sums only to 94%.
I tried a different weather file (Milan), it sums to 97%. Then tried Doha weather file, it sums to 100%.
Very confused… could it be something with location? Which radiance version are you using?
Tested these four from the ladybug site - only doha behaved normally. Might it be a rounding error that somehow accumulates throughout the simulation year?