[SOLVED] Creating a Derived Variable in Ubidots STEM

suchidog · December 1, 2019, 10:18am

Hi,

I am trying to create a derived variable with the following text:

-0.004886457tilt^2 + 0.868732344tilt - 16.46755357

It seems the STEM Unidots doesn’t have this function? Can I do this with a Synthetic Variable?

Thanks.

suchidog · December 2, 2019, 12:30pm

I worked it out

jotathebest · December 2, 2019, 12:32pm

Hi there, I am glad to know that it worked, there should not be reason in the core to avoid your expression to be calculated rather than the computing time. Ubidots stem has some limitations for synthetic variables related with the special functions, you can reference additional information about this here.

All the best

suchidog · December 3, 2019, 4:55am

Thanks very much jotathebest

sampsonh21 · November 17, 2020, 3:20pm

I am having the same problem. I am using Unidots STEM and there is no option for a derived variable. Any workaround would be greatly appreciated.

HARRY

jotathebest · November 17, 2020, 7:03pm

Greetings, the derived variable was replaced by the synthetic variable concept. You can create synthetic variables just making click in the add button in your device detail view:

Bear in mind that Ubidots stem has some limitations for synthetic variables related to the special functions, you can reference additional information about this here .

All the best