Control flow when a return from an expression is nil

Dear delgsy,

delgsy said:

When my cross command fails to cross the threshold, it gives eval err in the result.
I want the test to give default value, i.e., uncalibrated value, so the next test have something to compare with.
Otherwise, all the tests after the one that have fail cross command will gives eval err as well.

This code does not work:
if((cross(v("/VOUT_INV" ?result "dc") 0.6 1 "rising" nil nil nil) - pv("/vref" "value" ?result "variables") == nil) "nil" "not_nil")

I believe the reason your ocean/SKILL code does not work is that you are requesting an expression be evaluated using the cross() function as part of your conditional expression. Note that your code is also not consistent with the recommendation Andrew made in the post for which you included the URL.

Luckily, the correction I believe, is quite straightforward if you have the time and wish to try it. You need to include only the cross() function in your conditional expression as in the following example. Since I do not know what desired "default, uncalibrated value" is, I will use the artificial variable name of "default_value" for it and the resulting value as variable "measured_cross_value" in my example. I hope this makes sense to you delgsy!

measured_cross_value  = if(cross(v("/VOUT_INV" ?result "dc") 0.6 1 "rising" nil nil nil) default_value cross(v("/VOUT_INV" ?result "dc") 0.6 1 "rising" nil nil nil))

I hope I understood your question correctly delgsy and this is somewhat useful to you!

Shawn

Thanks! it works if I do not include the arithmatic operation.

Andrew Beckett
Thanks! I will try it later.

Thanks! it works if I do not include the arithmatic operation.

Andrew Beckett
Thanks! I will try it later.

Dear Delgsy,

Great!! I was happy to read you have it working! Thank you for letting us know and good luck with your simulations!

Shawn