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Interesting question about the effect of not accepting any other trades than
0/H/L/C in Metastock. I do not know if it can be safely said to deliver any
drawback at all. Have all prices between low and high been available for
buyers or sellers during the day? Probably not. So if you assume you can buy
at open minus two points, you assume that deal will be filled at that value.
But did that deal really exist just because we know O/H/L/C? Might have, but
maybe not. A more reliable way to test against reality is to use tick data,
but since you yourself was not there with your deal, the data might have
been different if you had traded.
A good way is probably to use the filling function as tradestation does, but
only if you have a slippage that increases with lowering volumes whenever
you simulate a trade at anything but open or close.
> -----Original Message-----
> From: Derek [mailto:dfawell@xxxxxxxxxxxx]
> Sent: den 5 augusti 2001 16:28
> To: omega-list@xxxxxxxxxx
> Subject: Tradestation v Metastock
>
>
> Thanks to everyone who's replied so far to my query. It's
> clarified some things for me.
>
>
> Some interim comments and queries:
>
> My thoughts on starting to trade are that I will open
> positions at EOD but
> put on automatic stop losses that could activate at any time.
> I'm only thinking of stocks at present but I guess I'll need
> to go to futures to get full diversity.
>
> So the limitation that John mentioned that MS won't allow
> stops to be tested at
> precise prices, is an important one that I didn't know about before.
> I would guess this would only apply to the EOD version - but
> that's the one
> I was thinking of getting.
>
> Does anyone have any thoughts on how large the inaccuracies
> this problem might cause - would they be so large as to make
> any results of system testing meaningless? Could anyone run
> some simple comparisons? I don't have a good feel for this at all.
>
> As far as I understand Omega don't sell a cheaper EOD version
> (Supercharts?) any more. Did this version have the same
> problem? I ask because I might consider getting a secondhand
> version of this.
>
> Thanks for the offers of selling MS to me. I could be
> interested if the person lives in the UK (as I do). Any
> other offers welcome!
>
>
> David, you mentioned AIQ. I had a 30-day free trial of this
> a few months ago and
> wasn't too impressed, because it was very much a black-box
> approach. There
> didn't seem to be any way of constructing my own system. Is
> yours a more advanced
> version that has a programming language incorporated? I had
> thought I was testing the
> full version.
>
> Derek
>
>
>
>
>
>
>
>
>
>
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