VBA “Argument Not Optional” - unsure how to declare variables
问题 I am trying to write a VBA macro that assigns values to specific cells by calculating the average of the cells directly above and below it. I am running it by selecting the Macros button on the Developer toolbar, then I have to type in the name of my function (it doesn't appear on the list) "interpprob" and select run. I then get a popup that states "Argument is not optional." I'm not quite sure what the problem is. The full macro is below. "tstep" is meant to be an array of the set of rows