Range

[Lavag]

Hello guys,

First of all, I am glad to be here. I am a beginner at LabView (2009).

Second, I was suggested this site by a friend of mine in case I need help with LabView.

Third, I need HELP! hehe

Ok so I want to create range of number associated with another number.

i.e. Numbers 1-10 should be assigned value "1"

Number 11-20 should be assigned value "2"

and so on.

I want to compare my number with the range if it falls into the range, I want to assign the value assigned to that range.

i.e. # I have is 15 and I want to compare it with each range. Since 15 falls in between 11-20, I want to assign it # 2.

I am not looking for answer or code. All I want is an idea in the right direction. i.e., what types of things I should consider for creating different ranges and assigning them with numbers.

Thanks

[jcarmody]

Hello guys,

First of all, I am glad to be here. I am a beginner at LabView (2009).

Second, I was suggested this site by a friend of mine in case I need help with LabView.

Third, I need HELP! hehe

Ok so I want to create range of number associated with another number.

i.e. Numbers 1-10 should be assigned value "1"

Number 11-20 should be assigned value "2"

and so on.

I want to compare my number with the range if it falls into the range, I want to assign the value assigned to that range.

i.e. # I have is 15 and I want to compare it with each range. Since 15 falls in between 11-20, I want to assign it # 2.

I am not looking for answer or code. All I want is an idea in the right direction. i.e., what types of things I should consider for creating different ranges and assigning them with numbers.

Thanks

First of all, welcome.

Second, you've come to the right place.

Third, think about what you get if you divide the input number by the size of the range.  For your example, divide 15 by 10 and consider the result.  Try a few other numbers and you'll see what I'm getting at.

(hint: Quotient & Remainder)  Highlight the text before this line for a dead giveaway...

Good luck.   

[Shaun Hayward]

There's also a really handy function lurking in the comparison palette called "In Range and Coerce" which could certainly help you out a little bit:

Shaun

Edited May 9, 2010 by Shaun Hayward

[Minh Pham]

Another option is to use case structure as shown:

Another option is to use case structure as shown:

what happened to my attached img?

[Rolf Kalbermatter]

what happened to my attached img?

I noticed this happening to all image attachments on LAVA lately. Must be a misconfiguration on the IP-Board software and I guess someone should alert Micheal about this.

[asbo]

I noticed this happening to all image attachments on LAVA lately. Must be a misconfiguration on the IP-Board software and I guess someone should alert Micheal about this.

I already made a post about this in the site/support sub-forum.

[francis321]

Hi

It would be much easier to use the range 0-9, 10-19, 2029...

But here a solution for your range( look at the picture).Quotient and remainder function. You do not need the for loop if you just dealwith one value at the time.

Francis

[torekp]

Francis has the best solution for ranges that are perfectly equal, and Shaun has a good one for ranges that are arbitrary (e.g., 1 to 6, 7 to 20, 21 to 22, ...). But for arbitrary ranges - a look-up table - I use the array thresholding function. Input the upper boundaries as the array input, and your test value as the scalar input. Round the fractional index down, and that gives you your category number (0-based - you can then add one if you like 1-based notation).

[francis321]

For arbitrary ranges you can use this (picture). The problem is if the value is out of range, the VI will never stop so you can add a manual boolean stop in the wile loop with a OR function.

Or just use a big value for the last range so you are sure it will always be in range.

Francis

[francis321]

You were right Torekp. Your solution is much more simple! +1

Francis