Removing specific values from an array

[JulianChen]

Good day:

I'm trying to code a program that does the following transformation:

{1, 2, 3, 2, 3, 4, 5, 6, 5, 6, 7} ---> {1, 2, 3, 3, 4, 5, 6, 6, 7}   (Bold numbers have been removed)

Technically, I'm trying to do the comparison x_(i+1) >= x_i. If this is false, remove x_(i+1) and the data in the corresponding row.

Text-wise I believe it looks like this:

for i=2 to Length(A)
   j = i - 1;
   if A[i] < A[j]
      Delete A[i];
   else
end

However, I'm having alot of trouble trying to program using a mix of for/case loops and shift registers.

Could someone point me in the correct direction?

[altenbach]

What is your LabVIEW version?

Show us what you tried!

Maybe you should start here and add a shift register to compare current with previous to create the decision for the conditional tunnel. Shouldn't be hard. 😉

[altenbach]

Here's one possibility. Modify as needed.

 

[altenbach]

Of course you need to decide how to handle other conditions such as an input of:

1,2,3,1,2,4,5,6,5,6,7.

Should the output be:

1,2,3,2,4,5,6,6,7 (current code)

or

1,2,3,4,5,6,6,7

[JulianChen]

Hi Alten, thanks for your fast reply.

It should reread the entire array and ensure that the condition holds for all subsequent values - 1,2,3,4,5,6,6,7.

I will try the VI u posted.

Thanks again!

[altenbach]

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JulianChen wrote:

It should reread the entire array and ensure that the condition holds for all subsequent values - 1,2,3,4,5,6,6,7.

---

OK, the you need to make a few small modifications. See if this works: