how do you create a string indicator as an output to a formula node?

[Laudie3a]

I am creating a formula node and I want one of my outputs to be a string indicator. How do I do this?

[Dennis_Knutson]

You can't as far as I know. As far as I know, none of operations inside a formula node create string data. What are trying now? More homework?

[Laudie3a]

Yes. We are supposed to create a subVi which will calculate BMI given a formula and 2 numeric inputs. We are supposed to classify the body weight according to a table which I did through LEDs and a message to the user. However, our professor said that the subvi should have two outputs: the BMI as a floating point number indicator and the classification as a string indicator. Maybe I am misunderstanding the question?

[Dennis_Knutson]

Yes, you are misunderstanding the question. An output of the subVI does not at all mean an output from a formula node. Whatever numeric you get (from a formula node or native LabVIEW math functions), you will have to use that to generate the string. Perhaps index a string array.

[Laudie3a]

Would you mind explaining how a string array works?

[RavensFan]

I would recommend looking at the online LabVIEW tutorials
LabVIEW Introduction Course - Three Hours
LabVIEW Introduction Course - Six Hours