On following tutorials I always seem to get stuck on expressions, we need someone to give us tutorials on how these work… I am learning python but for example I don’t know what v1 is?
I suspect the problem is here.
Expressions are a little wonky to get a handle on, so I’m right there with you when it comes to really understanding how they work.
Here’s a toe file with the network from the second tutorial that you were working on, hopefully this will make it easier to see what’s happening in this network:
I’ve been thinking a lot about what to write about next, and it seems like a better explanation of how referencing and expressions work might be useful to folks - is this something that you would find helpful?
just finished writing something to try and do a better job of explaining referencing and expressions. It’s not very sexy reading, but hopefully it will shed some light on what I’m always going on about when I write about using python expressions to connect operators.
HI Mathew, thank you very much for the help and tutorial-
I got discouraged with not being able to get the expressions to work, so I took a break from touch, but upon seeing your post today I am jumping back on it!!!
thank you.
I wanted to drop this here, as i had the exact same problem years later, after previously acing the tutorials one by one. Just realized -after staring blankly for an hour at the screen, going through all other referencing tutorials one by one, and feeling depressed!- that the problem lies in simple syntax error caused by ’ instead of " (in my case). Might be helpful to total noobs and people with no code background.
so everything went back to its normal for me after changing: