random numbers - simulate a dice

[F. Pöck]

Hello,

i found that "random number 0-1" feature in Labview, but how about
simulating a dice (1-6).

Best regards
f.pöck

[becktho]

Hi

That's just simple math:

Let's say x is a random value.

So you get dice = 1 + round(x*5)

[Kumar_B]

Try the attachment.In the select tool true condition give your choice of number for to avoid getting zero.

by,

Kumar

[Rod42]

Just multiply by 6 and round to the next highest integer.

Choose the output that you want for your needs, integer or double.

Random is strictly between 0 and 1, but you might possibly want to make sure that rounding errors in the multiply haven't made the answer 7.

Rod.

Message Edited by Rod on 08-10-2006 12:16 PM

[devchander]

Hey,

One more method, only if your are not particular about 64 bit Float (dbl) data representation of random number generated

[Rod42]

Errm, but if you multiply by 5 and convert the result to an integer, doesn't that give you a fencepost error??

Depending whether your conversion is to the integer above, below, or nearest you'd get no instances of 1, no instances of 6, or get 1 and 6 half as often as 2, 3, 4, or 5.

Rod.

[devchander]

Yes Rod, that will also be a concern

[Tim Norris]

---

@F. Pöck wrote:
Hello,

i found that "random number 0-1" feature in Labview, but how about
simulating a dice (1-6).

Best regards
f.pöck

---

If you multiply by 6, round down and add 1 you get the required result.

The attached VI (LV7.0) shows that the distribution is even between the 6 numbers.

Tim Norris

[falkpl]

See the attached example for multiple dice rolls simulated

Paul

LV 7.0

[falkpl]

Oops no attachment, here you go!

Paul