I imagine I could write a list of variable values to a file at the end of each run(). Then I could read them back in at the beginning of the next run(), and so have persisting variable values.

Is there a better, more convenient way to achieve that in Zorro?

If you define your variables as static, their values will persist between runs.
So instead of

you define it as


This is explained a bit more on this page in the manual:
http://www.zorro-trader.com/manual/en/aarray.htm

Thank you for the answer!

I'm a bit confused. Aren't static variables... well... static? Which means they cannot change? In which case we do not have to worry about passing the value between the run() calls, since the hard coded value never changes anyways.
Perhaps I am getting this wrong though.
In any case, I would like to have dynamic variables that change over time persist between run() calls. Is there a nice way of doing that?

No, not in that sense. (which I know is a bit confusing)
Try it out, it think you will find it does exactly what you describe :-)

Wow, yes, the link you referred to also points out global variables.
I think that is exactly what I need, thank you for pointing it out.
(Somehow I was under the impression that Zorro only allows the user to write stuff in the run() function but not outside. Having access to global variables solves the issue, of course! :] )