Problem with expression tool

Any suggestion to fix this expression problem?

  1. Parameter “Variable x” has an invalid name. Only use alphanumeric characters and don’t start with a number.



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I was actually following this tutorial https://www.youtube.com/watch?v=a1PjeVBVnrk&t=276s

Change input variable name from “Variable x” to “x”.

It’s a known bug of the “Draw Full Names” mode.

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It works, thank u
Do u also know how to change the draw full names in other kinds of visualisation?

Yes, a well known gotcha that has stumped people for at least seven years, probably more like ten. It’s a bug.

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