less/greater than functions

[pjh-10]

looking at these functions they only have a boolean output as opposed a number output.

i'm looking at a scenario like:
if;
16 put out 16

18 or 20 put out 32.

[Jacobson-ni]

If you have simple enough logic you can use the Select function to output a value based on some true/false condition.

http://zone.ni.com/reference/en-XX/help/371361L-01/glang/select/

As your logic gets more complicated it might be easier to just use a case structure.

[RavensFan]

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@pjh-10 wrote:

looking at these functions they only have a boolean output as opposed a number output.

i'm looking at a scenario like:
if;
16 put out 16

18 or 20 put out 32.

---

Because they do the function they were designed for, tell you whether something is less than, greater, then (or equals as well.)

Use a case structure as pointed out at http://forums.ni.com/t5/LabVIEW/Tab-control-and-Ring/m-p/3093407#M884876

[crossrulz]

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@pjh-10 wrote:

looking at these functions they only have a boolean output as opposed a number output.

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And why should they?  The do the comparison.  They shouldn't do any more.  Now what you do with the results of those comparisons is completely up to you.

In the specific case you gave, I think you should use a Case Structure and wire the number directly into the case selector.  You can manage ranges of numbers with the case structure, which I think will do exactly what you want.

[altenbach]

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@pjh-10 wrote:

i'm looking at a scenario like:

if;
16 put out 16

18 or 20 put out 32.

---

• Are these integers?
• Are there guaranteed only three possible input values (16, 18, 20)?
• If not, what should happen if another input is enountered (e.g. 19 or 0)
• Where do the numbers come from?
• Where does the output go?
• Do you simply want to round up to the next integer power of two?

[mikeporter]

I don't know what you are trying to accomplish, but it's clearly not a comparison. Is this a simple lookup table? Is there some math operation that defines the output? What are you trying to do?

Mike...

[pjh-10]

A word length is read (it’ll either be 16/18/20)
if 16 I want to pass it on to a case structure of 16
if 18/20 onto the 32 case structure

[Munna232]

are you looking for something like this?

[GerdW]

Hi pjh,

either do your comparison or use those numbers as selector values!

As this is pretty basic labVIEW stuff: are you sure you have taken all those free online beginner courses offered by NI?

[natasftw]

I'm also concerned.  When I use add, it just adds the numbers.  It doesn't tell me how many times the add primitive has been called.  Why doesn't LabVIEW tell me that?  It should know I want it to do more after it adds.