Hey guys:

  Need some algorithm help if possible..

  Say I have 1000 points in a sorted list, and I want to select a
given portion of the points in the list, for example, 70% of it. Don't
need to be perfectly accurate, but the 70% have to be pretty much
evenly distributed among the 1000 points.

  I am doing a step selection right now, which is something like:



selectedList = []
remain = 0
while i < 1000:
    step = int(1/0.7 + remain)
    remain = 1/0.7 + remain - step
    selectedList.append(pointsList[i])
    i += step


the step selection works, but just wonder if there is any better/
faster solution I can borrow from you guys.

  Any suggestions would be really appreciated.

-ling

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