adding 2 signals, when one signal shows no value, result is missing

[Felix Jing]

Hi there,

I used $a +$b to add 2 signals, what i find weird is that when one of the signal is 0, the other has value, the result is still 0.

I only the sum result at a time when both signal has values. 

How can I fix this?

Thank you

[Lindsey.Wilcox]

Hi Felix-

To do this, you will need to replace the missing data gaps in your signals with 0.  This can be done by following the steps in the following forum post: 

Please let me know if you have any additional questions.

Thanks,

Lindsey

 

[Felix Jing]

thats exactly what i am looking for, didnt know the data missing.

[Sepide]

Felix,

Please let me know if this is the problem you have:

Here is the result of adding two signals when one  of them has gaps in it: 

 

Solution

Step1: Identify the gaps in Signal1 using the following formula: 

• $s1.isNotValid()

Step 2: Substitute the gaps in Signal1 with zero using the Splice function: 

• $Signal1.splice(0.tosignal(),$Gap)

Step3: Use the newly created signal(Without gaps) and add it to the second signal:

• $Signal1NoGap+$Signal2

Please let us know if this answers your question. 

Thank you