[amibroker] Re: Two easy questions, AmiBroker Email List Archive

Hi,

I got an error message on this particular line, saying that the condition has to be numeric or boolean. This is why I replaced == by =.

Here is what I have as a code:

arsignal = IIf( C>MA (C,20), 1,0);
arnotrade = IIf(HHV(arsignal,5)==1, 1, 0);
if (arnotrade==1)
{
//don't ACT on Buy/Sell Signals
// probably still want to calculate them
}
else
{
// code here for ACTING on your Buy/Sell signals
}

I'm still not sure what to write on the two particular line. Could you please give me an example?

Thanks,

Louis

2008/8/1 Snoopy <snoopy.pa30@gmail.com>

Louis,

It looks like you have: if(arnotrade=1)

It should be: if(arnotrade==1)

The first one does an Assignment. The second one does a Test for equality;

Also, it would be more helpful if you said what/how it didn't work. Since I don't know what your error is, I am just guessing that it NEVER trades since you ASSIGN the no trade zone value, and it will then process the first section to "Don't Act on Buy/Sell signals".

Blair

Louis P. wrote:

Hi Blair,

Thanks for your response!

For Problem 1, Mike gave me a simplier solution and it works fine.

For Problem 2, I used your code. Here is what I wrote:

achat=Buying condition (e.g. C>Ma (c,20);
arsignal = IIf(achat, 1,0);
arnotrade = IIf(HHV(arsignal,5)==1, 1, 0);
if (arnotrade=1)
{

//Sell =C< Ref (LLV (C,1),-1);
Sell=0;
//don't ACT on Buy/Sell Signals
// probably still want to calculate them
}
else
{

Sell =C< Ref (LLV (C,1),-1);
// code here for ACTING on your Buy/Sell signals
}

I used lowest value of 1 day only to test, but unfortuntately it does not work... Should have an easiest way?!

Thanks!

Louis

2008/7/30 Blair <snoopy.pa30@gmail.com>

Louis,

I am new to AB, but hopefully this can help out...

First:
Create an array for the period that you want to plotshapes.
Have your code assign the value to the array.
Have your code check for the value using ref(arrayname,-1).

Sample code:
arplot = iif(somecondition,1,0);
plotcondition = ref(arplot,-1);
if (plotcondition==1)
plotshape(....).;

Second:
Similar to above, use an array and check if you have a signal within
last x(5) periods.

Sample code:
arsignal = iif(yourbuyorsellsignalcondition, 1,0);
arnotrade = iif(HHV(arsignal,5)==1, 1, 0);
if (arnotrade==1)
{
//don't ACT on Buy/Sell Signals
// probably still want to calculate them
}
else
{
// code here for ACTING on your Buy/Sell signals
}

I hope this is helpful for you.

Blair

--- In amibroker@xxxxxxxxxps.com, "Louis P." <rockprog80@x..> wrote:
>
> Hi,
>
> I have* two* easy questions, if anyone can help me.
>
> *First*, I'd like to draw plotshapes not on the period the signal
was issued
> but on the period after the signal was issued. How can that be done?
>
> *Then*, (I asked this question already on the web site of the group,
but for
> some reason I didn't receive it in my mailbox so maybe there is a
problem.
> If you already received this question, please discard this one), I
wonder
> how to create a no-trade zone:
>
> I know how to do an automatic "sell after X period":
>
> Buy = c>ma (c,20);
> Buy = Exremspan (Buy,5);
> Sell = Ref (Buy,-5);
>
> I'd like to set a trade system that would begin to look for signals
AFTER
> that "no-trade" zone.
>
> E.g. In the example above, I'd like the system to do nothing for the
first 5
> bars after my entry and then, and only then, check for an exit
signal. How
> would you do that?
>
> Thanks a lot, and sorry if you received question 2 twice!
> Louis
>

--
Snoopy
"Still trying to shoot down that Red Baron"