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Hello,
>From 9/16/08;
0.25 * floor( number * 4 ); ; // this rounds down
0.25 * floor( 0.5 + number * 4 ); // this rounds to nearest
Best regards,
Tomasz Janeczko
amibroker.com
JG
-----Original Message-----
From: amibroker@xxxxxxxxxxxxxxx [mailto:amibroker@xxxxxxxxxxxxxxx] On Behalf
Of Gonzaga
Sent: Wednesday, November 25, 2009 5:13 PM
To: amibroker@xxxxxxxxxxxxxxx
Subject: [amibroker] Re: How do I use ticksize in futures?
Thanks for the answer.
But I think the problem is that in the buy condition I establish the
buyprice also. And so, the tick size does not affect to the buy price..
So I need an Amibroker function that rounds the price into 0.25 points..
--- In amibroker@xxxxxxxxxxxxxxx, James <jamesmemphis@xxx> wrote:
>
> I never define Ticksize in the formula. Make sure you have the
contract specifications set up in Symbol -> Information window. Tick size
should be set to 0.25. You can take PointValue and Ticksize lines out of the
code.
>
>
>
>
> ________________________________
> From: Gonzaga <gonzagags@xxx>
> To: amibroker@xxxxxxxxxxxxxxx
> Sent: Wed, November 25, 2009 2:25:10 PM
> Subject: [amibroker] How do I use ticksize in futures?
>
> Â
> Hi
> I'm trying to backtest a system in futures, in mini SP500, and have no
experience.
> I see that I must use the ticksize in order to tell Amibroker the smaller
movement of the ticker, in this case 0.25 points.
> I see that the constant 'tickersize' can obly be used with pre-defined
stops or Applystop, not with a user-programmed stop..
> Ok. But when I try a backtest, with the code:
>
> PositionSize = -2; // use 2% of equity
> MarginDeposit = 2250; // mini sp
> RoundLotSize = 1; // this you can set also in the Settings page
> PointValue = 50; //multiply punto SP
> TickSize=0.25; //least variation
>
> the system buys SP500 at e.g. 1153.37
>
> I thought that Ami should buy at 1153.25 or 1153.50, isn't it???
>
> Is possible to buy the future miniSP at 1153.37???
>
> Thanks in advance..
>
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