Assuming you don’t want to turn the second one into a function and pass data to it as arguments, the easiest way would be to save your data to a .mat file in your first script, then load it in your second script.
The load function reads your variables from the .mat file and puts them directly in your workspace just as you saved them originally. If you do not want those same variable names in the workspace of your second function (because they would overwrite existing variables with the same names), use load with an output argument. That way you can give the variables in the .mat file specific different names in the second script if you need to.
