extract and index every n elements of an array

[CW81]

Hi, 

i    x                                       i    x

0  10                to                   0  10

1  20                                      3  40

2  30                                      6  55

3  40                                      9  70

4  45

5  50

6  55

7  60

8  65

9  70

I am trying build a 2D array with the extracted values: one array being the index, and the other is the value of that index shown above.

The goal is to extract every n elements (n=3 in this example shown above) out of an array and index the elements and put them in a 2D array. I used the "decimate.vi", and it can extract the element but unable to provide me the index of that element , so does any one know a more efficient solution to program this?  

Please help 

Thank you

[aeastet]

Here is how I would do it.

[CW81]

Thanks for the help. Aeastet, can you please save as the VI in labview 2009, as I am using labview 2009, or show the true case structure screen shot, as I cannot see the true case structure program base on the posted screen shot.

Thank you  

[aeastet]

Here you go

[Darin.K]

I am a 'decimator' myself.  Only with arrays, not in the Roman sense.

[altenbach]

Your problem is not very well defined, so I make some assumptions.

I assume the input array is 1D, and the index is implicit. Here's my solution:

It would be trivial to adapt to a version with a 2D array input. try it! 🙂