Getting only the odd rows of an array

[GianmarcoSbarra]

I have an array 120(rows)x160(columns).
I'd like to filter this array so that i get only the odd rows and i want to get an array of 60x160 in the end.
How can i do this?

I tried with "delete from array" and "Array Subset" but they allow me to get only a consecutive portion of the array, while here i want odd(or even) rows.

Thanks

[Ben]

Use a For loop with indexed input tunnel and a conditional output tunnel.

The condition terminal should be driven from a "Equal zero" that comes from the remainded terminal of a Quotient Remainder that divides the iteration terminal by "2".

If I got the row column thing wrong use a transpose on the array before it goes to the For loop.

I do not have LV available to check so forgive me if I got that wrong.

Ben

[GianmarcoSbarra]

Like this?
And now how do i build the new array? (That's a Array Subset)

[crossrulz · Accepted solution]

No need for the Array Subset and you should be autoindexing the input array.  Here is a less computationally intensive version.

[GianmarcoSbarra]

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crossrulz ha scritto:

No need for the Array Subset and you should be autoindexing the input array.  Here is a less computationally intensive version.

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Doesn't this take out Single elements rather than rows? Am i missing something?

[altenbach]

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@GianmarcoSbarra wrote:

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Doesn't this take out Single elements rather than rows? Am i missing something?

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Yes, you are missing something. On a 2D array input, it will take rows.

Instead of posting, just do the experiment! Probably faster.... 😄

[GianmarcoSbarra]

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crossrulz ha scritto:

No need for the Array Subset and you should be autoindexing the input array.  Here is a less computationally intensive version.

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Two days in a row that you solve my problems crossrulz, you're changeing the way i work with labview, thanks.

[Ben]

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@crossrulz wrote:

No need for the Array Subset and you should be autoindexing the input array.  Here is a less computationally intensive version.

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Yes much more simple than what I attempted to describe and besides my version would have returned the even rows not the odd.

Ben

[altenbach]

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@Ben wrote:

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more simple than what I attempted to describe and besides my version would have returned the even rows not the odd.

Ben

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Tim's code also returns the even rows, but it is easy to fix. 😄

(e.g. initialize with TRUE or tap before the NOT to the conditional terminal)

[crossrulz]

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@altenbach wrote:

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@Ben wrote:

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more simple than what I attempted to describe and besides my version would have returned the even rows not the odd.

Ben

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Tim's code also returns the even rows, but it is easy to fix. 😄

(e.g. initialize with TRUE or tap before the NOT to the conditional terminal)

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Depends on your definition of "even": Index is even or 2nd row (index=1) is even.  Mine with return the even indexes.  If that is wrong, just change the initialization to a TRUE.