Display only "true" values in a table

[SteffenS]

Hi, the support in this forum is really great, so I hope you can help me with this one:

I'm doing a Min/Max comparison with data I measured before and arranged for an XY graph.

Actually I'm comparing two 1D-Arrays and getting a 1D-Array of boolean as result.

This is ok, but I only want to show the index of the true values.

Anyway, I just want to show the x-values, where the threshold was broken.

Any ideas are welcome!

[GerdW]

Hallo Steffen,

you need to create that pseudo-code:

FOR all bits in boolean array
  IF bit(i) THEN add i to output array
NEXT

You need a FOR loop, a shift register, a case structure and a BuildArray node.

In recent LabVIEW versions you only need a FOR loop and select the correct output tunnel mode…

[SteffenS]

Hey Gerd, thank you for your answer!

I'm not really sure how to program this in labview, but I tried to get in the right direction.

Maybe this is not the right way to get what I want.

Do you know another way to get all the x-values (not the index value), when comparing the y-array with the max-array?

[GerdW · Accepted solution]

Hi Steffen,

not at all:

No need for ArraySize, (RubeGoldberg) boolean comparisons, and placing the build array in the wrong place…

I guess I already mentioned to take all those beginner courses offered by NI.com? This is pretty basic LabVIEW stuff!

[SteffenS]

I know the syntax, but I have problems to handle these arrays.

Thanks to your help, I could get the actual x-values out of the array!

[GerdW]

Hi Steffen,

now you created an even bigger Rube-Goldberg: All that code belongs into one loop!

No need to create an index array first when you can index your Y values directly!

[SteffenS]

you are right, again!

[P@Anand]

I believe you have LV2013. Here is simplified code of GerdW's by using the Conditional Enable terminal option.

[Neos]

Anand, You forgot somthing here.

May be you were in hurry

[P@Anand]

Yes 🙂 I should have named it as "Y" and made it a control.