I usually have no problems with this type of code as you can basically select the criteria with ProScreener.
However, this one is not bringing up anything at all! (even if I select it to look at all markets). I’m basically looking to find markets where the 21 day EMA has crossed over the 400SMA within the last 100 days/periods on a daily chart.
<p>Hi David</p><p>Have you tried changing Crosses Over to > or < just to see if your Screener springs into life with some results?</p><p>Cheers</p><p>GraHal </p>
Re the next 50 results, I suggest you try putting a filter / limit on your sort criteria starting at result 50 so as to show result 51 to 100. Hope that makes sense?
You can’t get results which are oldest than 256 periods. So if you want to test a crossover of a SMA200 that occured 60 periods ago, it is not possible because a 200 periods SMA needs of course 200 periods to compute correctly and it’s getting worse with EMA for instance. This is a limitation of the Proscreener module ..
Preload bars are the numbers of bars that are pre loaded at the beginning of a backtest or for a screener.
A 250 MA needs 250 bars in order to compute the Moving Average so as Nicolas says (this is his site btw :)) the limit is 256 bars … hence why the MA not give any hits above MA 256? (I didnt try 256, only 250).
On Backtest you can select the Command ‘Preload Bars’ and enter what you wish (up to a limit). The default PreLoad on Backtest is 200 Bars.
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