Do U have a simple and intelligent solution for this problem? Logical problem...

[Michelle1892773]

I must to do a cycle with this features:
- I have a random number, N(i), for 100, so I have a number between 0 and 100 generated every step of cycle;
- every number is pass to shift register of cycle;
- I have also a number X initialized at 50;
- I start with sum or subtract 1 from 50 in the first step (i=0) of cycle (for example I subtract 1: X(0)=50-1=49);
- I compare two subsequently number N(1) and N(0): if N(1)<N(0) I desire that the next step of cycle continue to subtract 1 from X(1), for example X(1)=49-1=48, instead, if N(1)>N(0) I want change the operation on X. Since the first is - the new operation is + (for example X(1)=49+1=50). Pratically I desire a SWITCH that if N(i)<N(i-1) don't change previous operation on X(i), if N(i)>N(i-1) change operation on X(i).
Can I do it?

[RavensFan]

Yes.  You just need to have another shift register that is a boolean to store whether you are in a count up or count down cycle.

[Michelle1892773]

 Please do... and post VI. Thanks.

[Giedrius.S]

Try to check if this is what you need.

[Michelle1892773]

Not very good... I hope excellent solution 😉

[RavensFan]

What was wrong with the solution Giedrius gave you?

Why not try to work this out yourself and post a VI with any questions you might have if your attempt doesn't work right.

Is this homework? 

[Michelle1892773]

Absolutely no, please save it for previous version of LabView. I don't have LW9.

[RavensFan]

What version do you have?

[Michelle1892773]

LW8

[Giedrius.S]

The only (possible; it depends on what exactly do you need) problem I see in my previous VI is that it is static. I mean, then you have the < as the outcome of the comparison, it substracts, and if you have > - it sums. This vi checks for the previous operation, maybe it is more correct according to what you need.

P.S. Both previous and this VI are coded using LV 8.6. What version do you need?

Message Edited by Giedrius.S on 02-20-2010 12:21 AM

Message Edited by Giedrius.S on 02-20-2010 12:25 AM