Handling a large array of integers

[rinscneutrons]

Hi,

I have a 1-d array with upwards of 1 million elements. I need to "pull out" every other element and put it in a new array. 

Right now I have a "for" loop that divides the index of the loop by 2. If there is no remainder it ignores that index. If there is a remainder it indexes the array at that element and puts the element into a new array.

After ~300,000 elements the program slows down considerably.

Any suggestions?

Thanks,

Steve

[johnsold · Accepted solution]

Try the Decimate Array primitive.  Use it with two output arrays (default - it is expandable) and do not connect the one you do not need to use.

Lynn 

[Ben]

THe slow down is probably due the build array repeatedly allocating memory.

Try Lynn's suggestion since it accomlishes he same thing but with a sinlge operation.

Ben

[rinscneutrons]

That did the trick.

Thanks,

Steve