This is a stupid bug.  I believe you can fix it by changing line 360 in sim/portrayal/inspector/ChartingPropertyInspector.java
from

	(lastTime < time || !updatedOnceAlready))  // bug fix 
to

	(lastTime + globalAttributes.interval <= time || !updatedOnceAlready))  // bug fix 

Sean

On Aug 13, 2015, at 2:38 PM, Axel Kowald <[log in to unmask]> wrote:

> Hello Everybody,
> 
> as in chapter 2.9 of the MASON19 manual
> I'm using a function like getAgitationDistribution() to display a
> histogram of some variable of my model. But since it is computationally
> costly to calculate, I would like that MASON only calls this function
> every 10 seconds or every 100 steps.
> 
> Although I can specify in the histogram that it should only be updated
> after 10 seconds, it seems that my function is still called every step
> (only the graphical update is restricted to 10 second intervals). I then
> added something like "if schedule.getSteps()%100==0" to my code to
> perform the calculation only every 100 steps. In principle that works
> but now the histogram is only correctly displayed at step 100,200,300,
> etc. For all other steps it shows nonsense because in those cases I
> return an empty double[].
> 
> So what is the best way to solve this problem ?
> 
> Many thanks,
>  Axel
>