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That is correct. Null = Empty so there is nothing to plot.
Steve
----- Original Message -----
From: "eric tao" <erichtao@xxxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Sunday, August 19, 2007 8:52 PM
Subject: [amibroker] Re: How to draw a graph on certain bars only
> Null is not 0 anymore?!
> sorry I don't have ami with me to do the test. Are you saying if I
> assign null to a array, it will plot nothing instead of 0 like before?
>
> Thank you.
>
> --- In amibroker@xxxxxxxxxxxxxxx, "archstone2003" <archstone2003@xxx>
> wrote:
>>
>> Hi,
>>
>> I asked the quesiton to Yahoo group because I didn't receivce the
>> reply from Amibroker support. Usually they reply really fast after I
>> asked them, but this time it was taking longer and I though they may
>> not have an answer.
>>
>> But afte I made the post I got the answer from them, and I would like
>> to share it with you as well.
>>
>> This is the core part of their reply:
>>
>> ======================================
>> Simply use Null value for days when you don't want to plot:
>>
>> array = IIF( MACD() < 0, MACD(), Null );
>>
>> Plot( array, "Only MACD above zero", colorRed );
>>
>> ======================================
>>
>> Have a nice day!
>>
>>
>>
>> --- In amibroker@xxxxxxxxxxxxxxx, "Jerry Gress"
>> <pleasenospamplease@> wrote:
>> >
>> > Hello,
>> >
>> > Try using stylecloud, example below for some R/S zones:
>> >
>> >
>> > _SECTION_BEGIN("Color");
>> > PlotOHLC(R3,R3,R3a,R3a,"",r1color,styleCloud|styleNoRescale);//r3
>> >
>> >
>> >
>> > Jerry Gress
>> > Stockton, Ca.
>> >
>> > -----Original Message-----
>> > From: amibroker@xxxxxxxxxxxxxxx [mailto:amibroker@xxxxxxxxxxxxxxx]
>> On Behalf
>> > Of archstone2003
>> > Sent: Friday, August 17, 2007 1:23 AM
>> > To: amibroker@xxxxxxxxxxxxxxx
>> > Subject: [amibroker] How to draw a graph on certain bars only
>> >
>> > Hi,
>> >
>> > I want to draw something on the price pane, and I want to draw it
>> only
>> > when certain condition is met, i.e., I want to draw it for certain
>> days
>> > but don't want to show it otherwise.
>> >
>> > Is there a way to do this?
>> >
>> > One way would be to use the background color to draw it when I
>> don't
>> > want to show it, but how can I retrieve the background color in AFL?
>> >
>> > Is there any better ways?
>> >
>> > Thanks.
>> >
>> > Wei
>> >
>> >
>> >
>> > Please note that this group is for discussion between users only.
>> >
>> > To get support from AmiBroker please send an e-mail directly to
>> > SUPPORT {at} amibroker.com
>> >
>> > For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
>> > http://www.amibroker.com/devlog/
>> >
>> > For other support material please check also:
>> > http://www.amibroker.com/support.html
>> >
>> > Yahoo! Groups Links
>> >
>>
>
>
>
>
> Please note that this group is for discussion between users only.
>
> To get support from AmiBroker please send an e-mail directly to
> SUPPORT {at} amibroker.com
>
> For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
> http://www.amibroker.com/devlog/
>
> For other support material please check also:
> http://www.amibroker.com/support.html
>
> Yahoo! Groups Links
>
>
>
>
Please note that this group is for discussion between users only.
To get support from AmiBroker please send an e-mail directly to
SUPPORT {at} amibroker.com
For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
http://www.amibroker.com/devlog/
For other support material please check also:
http://www.amibroker.com/support.html
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