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Sum of an Array

  1. #1
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    Sum of an Array

    So I've never used arrays before but I read through some tutorials but I'm getting some errors.
    So the first bit of code is really what I'm trying to accomplish and the second bit I was experimenting to try to learn.
    Looking at the first bit of code, what I need is to run through a column of numbers. If the number is positive then add it to the posArray array and if it's negative at it to the negArray array. Then once all the numbers have been added to the appropriate arrays, I need to generate two different sums.
    If you could help out with two requests here is what they are:
    1.) how would I set a cell equal to the sum of an array?
    2.) what would it look like if I used the sum of the array in the code and performed more calculations before I set a cell equal to the value -- for example, in the code I would take the sum of posArray. Then I would calculate 100-1/posArray and put that calculation in a cell? Maybe I should just set he sum of the array equal to a variable?

    Thanks for your time!

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    Forum Guru Norie's Avatar
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    Re: Sum of an Array

    Nicholas

    For the first part.
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    For the second part add this to the code.
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    If posting code please use code tags, see here.

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    Forum Expert Mordred's Avatar
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    Re: Sum of an Array

    Hey Norie, won't idxpos always be 0 with your example?

    EDIT never mind, I see it's increment

    Where's my glasses?
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    Forum Expert Mordred's Avatar
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    Re: Sum of an Array

    Does this do the same as Norie's? Not sure but it's what I was working on
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    Re: Sum of an Array

    Quote Originally Posted by Norie View Post
    Nicholas

    For the first part.
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    do I need to declare a datatype with these?

  6. #6
    Forum Guru Norie's Avatar
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    Re: Sum of an Array

    Well, you could, but it wouldn't be string and unless you know exactly what data you have it would be hard to pick the correct numeric data type.

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    Re: Sum of an Array

    Okay, thanks.
    And the "Option Explicit" piece -- what does that do? I deleted it and the code seems to do the same thing? haha.

  8. #8
    Forum Guru Norie's Avatar
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    Re: Sum of an Array

    Leave it in.

    What it does is force variable declaration, which is a good thing.

    It actually picked up a few typos in the code I posted, before I posted it.

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