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>Something Bob Fulks wrote just gave me a thought.
>
>> You can refer to the values of each data series with an index.
>> For example, if you wanted to add all the closes of 30 data streams you
>> could say:
>>
>> MySum = 0;
>> for j = 1 to 30 begin
>> MySum = MySum + Close of data(j);
>> end;
>
>What happens if you do something like this?
>
> for j = 1 to 10 begin
> s[j] = xAverage(close data(j), length);
> end;
>
>I recall a function occuring in the same spot will retain its internal
>variable values within the function from one bar to the next. And here
>it's being called several times in the same spot. Each time xAverage is
>called in the loop, does it retain its local variable values from the
>previous loop? You wouldn't want that to happen in this case.
I've learned it's advisable to take the data(j) outside and write the above as:
for j = 1 to 10 begin
s[j] = xAverage(close, length) of data(j);
end;
Maybe it's because the compiler keeps a separate instance for each data stream when you do it this way, and avoids the problem you refer to.
Mike Gossland
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