|
PureBytes Links
Trading Reference Links
|
Just a general note, if one of the symbols does not have a bar on a certain
date but the rest do it can cause problems
I find it better to use datetime, or datenum if only end of day, for the bar
identification instead of barindex
--
Cheers
Graham
AB-Write >< Professional AFL Writing Service
Yes, I write AFL code to your requirements
http://www.aflwriting.com
On 11/01/07, trb0428 <tombrowne34@xxxxxxxxxxx> wrote:
>
> I have almost got his working except for the following: the indicator
> that I am plotting disappears and re-appears on alternating clicks of
> my mouse ???? I have tried hardcoding numbers in place of Barcount
> and I have tried adding the line : SetBarsRequired(10000,10000); but
> with no difference. I am first creating and storing a ranked and
> sorted list of 200 stocks using the following (AFL_File#1), which I
> am confident is working properly and not part of the problem. This
> stores my ranked and sorted list in a binary file. I then use
> (AFL_File#2) in an indicator window and it succesfully retrieves the
> data I want to plot from the binary file but the plotted indicator
> diasppears and comes back with each mouse click. Any ideas on how I
> can prevent this?
> Thanks,
> Tom
>
> //AFL_File#1
> osInitialize();
> List = GetCategorySymbols(categoryWatchlist, 10);
> table=osTabCreate();
> osTabAddColumn( "Ticker", 2, table, 25 );
>
> for( j = 0; j <= BarCount-1; j++ )
> {
> osTabAddColumn( "Score"+j, 1, table );
> osTabAddColumn( "rank"+j, 1, table );
> }
> for(i=0; ( ticker = StrExtract( List, i ) ) != ""; i++)
> {
> SetForeign(ticker);
> osTabSetString( ticker, i, 0, table );
> for( j = 0; j <= BarCount-1; j++)
> {
> osTabSetNumber( score[j] = LastValue(Ref(((ROC(C,5) + ROC(C,15) +
> ROC (C,25) + ROC(C,35)) / 4),-BarCount+1+j)) , i, 2 * j + 1, table );
>
> }
> }
> RestorePriceArrays();
> for( j = 0; j <= BarCount-1; j++)
> {
> osTabSort( table, 2 * j + 1, False ); //score
> for(n = 0; n<= i -1; n++)
> {
> osTabSetNumber(n+1,n,2 * j + 2,table); //rank
> }
> }
> osTabSort( table, 0 , True ); // reorder by ticker#
> osTabDelete( table );
>
> //AFL_File#2
> osInitialize();
> table2 = osTabCreate();
>
> for( j = 0; j <= BarCount-1; j++)
> {
> ID1[j] = osTabGet(0, 2 * j + 2, table2);
> }
> osTabDelete( table2 );
>
> Plot(ID1, "!ID1 rank", colorRed );
>
>
>
>
> --- In amibroker@xxxxxxxxxxxxxxx, "trb0428" <tombrowne34@xxx> wrote:
> >
> > Graham,
> >
> > Thanks. I find the sorting and ranking within the Osaka routines to
> > be very fast. I am going to try saving a binary version of the
> table
> > created using Osaka and then from within my indicator code recall
> and
> > load the table into memory and index into it for just the rank of
> the
> > ticker I have displayed in my chart therfore only needing to create
> > one array instead of 200 which I think (hope?) I can do. I think I
> > should then be able to plot this without incurring a performance
> > penalty.....thanks for your help.
> >
> > regards,
> > Tom
> >
> > --- In amibroker@xxxxxxxxxxxxxxx, Graham <kavemanperth@> wrote:
> > >
> > > If you need the value for every bar then you will need to run the
> > ranking
> > > for every bar, including creating the data files for every bar.
> ie
> > within a
> > > loop
> > > There are some sort and rank AFL in a library that allow similar
> > ranking
> > > using staticvarget, but again these will need changing to within
> a
> > loop to
> > > get the ranked values for every bar.
> > > Just remember that sorting symbols against each other will slow
> the
> > > execution down by a very large amount, the more symbols and more
> > bars
> > > included will determine the boredom time you will encounter
> > >
> > > --
> > > Cheers
> > > Graham
> > > AB-Write >< Professional AFL Writing Service
> > > Yes, I write AFL code to your requirements
> > > http://www.aflwriting.com
> > >
> > >
> > > On 11/01/07, trb0428 <tombrowne34@> wrote:
> > > >
> > > > Hi Graham,
> > > >
> > > > I am using the Osaka plugin to rank and sort a list of stocks.
> > > > From this, I am trying to create an indicator which will
> display
> > the
> > > > rank of the stock for each bar. I have 200 symbols that I am
> > sorting
> > > > and rankng.
> > > >
> > > > Below is the code I am using to read from the Osaka table into a
> > > > single array ( only works for one ticker). I was hoping to be
> > able to
> > > > create (dynamically) the 200 arrays I need to hold the rank
> > numbers
> > > > for each day for the 200 tickers using something within the
> loop
> > like:
> > > >
> > > > myarray = "ID"+n;
> > > > myarray = ID;
> > > >
> > > > but I know this doesn't work.
> > > >
> > > > Can I accomplish this with VarSet/VarGet as you suggest?
> > > >
> > > >
> > > > for (n = 0; n<= tickers-1; n++) //n is the rows representing
> > tickers
> > > > {
> > > >
> > > > for( j = period-1; j <= BarCount-1; j++) // j*2+2 holds
> the
> > rank
> > > > {
> > > > ID[j] = osTabGet( n, 2 * j + 2, mytable );
> > > >
> > > > }
> > > > myarray = "ID"+n; // <-- this does not work
> > > > myarray = ID; // <-- this does not work
> > > > }
> > > >
> > > > Thanks,
> > > > Tom
> > > >
> > > >
> > > > --- In amibroker@xxxxxxxxxxxxxxx, Graham <kavemanperth@> wrote:
> > > > >
> > > > > Tom
> > > > > Exactly what are you trying to achieve? What are the arrays ?
> > > > > btw Varset is an array, staticvarset is a single value
> > > > >
> > > > >
> > > > > VarSet("Close",C);
> > > > > Plot(VarGet("Close"),"Close",colorBlue,styleLine);
> > > > >
> > > > >
> > > > > --
> > > > > Cheers
> > > > > Graham
> > > > > AB-Write >< Professional AFL Writing Service
> > > > > Yes, I write AFL code to your requirements
> > > > > http://www.aflwriting.com
> > > > >
> > > > > On 11/01/07, trb0428 <tombrowne34@> wrote:
> > > > > >
> > > > > > Ara,
> > > > > >
> > > > > > My goal is to plot the data. I do not see how I can use this
> > > > > > structure to plot? Is there a way to store this element by
> > element
> > > > > > data into an artificial ticker symbol. I have thought of
> > > > > > impplementations using ATC but cannot arrive at a solution
> > this
> > > > way???
> > > > > > Is there any other way to store this data?
> > > > > >
> > > > > > Thanks for your suggestions.
> > > > > >
> > > > > > regards,
> > > > > > Tom
> > > > > >
> > > > > >
> > > > > > --- In amibroker@xxxxxxxxxxxxxxx, "Ara Kaloustian" <ara1@>
> > wrote:
> > > > > > >
> > > > > > > Use VarSet() and VarGet() functions. These are non array
> > > > elements,
> > > > > > but you
> > > > > > > can create them dynamically so you can set and read them
> in
> > a
> > > > loop
> > > > > > as array
> > > > > > > elements.
> > > > > > >
> > > > > > > for (i=1; i<10; i++)
> > > > > > > {
> > > > > > > //create element name
> > > > > > > Array_element = "Arr_item" + i;
> > > > > > > VarSet(Array_element,desired_value);
> > > > > > > }
> > > > > > >
> > > > > > > x = VarGet("Arr_item1");
> > > > > > >
> > > > > > > ----- Original Message -----
> > > > > > > From: "trb0428" <tombrowne34@>
> > > > > > > To: <amibroker@xxxxxxxxxxxxxxx>
> > > > > > > Sent: Tuesday, January 09, 2007 1:39 PM
> > > > > > > Subject: [amibroker] Are dynamic arrays possible in AB?
> > > > > > >
> > > > > > >
> > > > > > > > Hi,
> > > > > > > >
> > > > > > > > I have a need to create arrays dynamically. Is this
> > possible?
> > > > I
> > > > > > have
> > > > > > > > tried several ways including the following but without
> > > > success:
> > > > > > > >
> > > > > > > >
> > > > > > > > for (n = 0; n<= tickers-1; n++)
> > > > > > > > {
> > > > > > > >
> > > > > > > > for( j = period-1; j <= BarCount-1; j++)
> > > > > > > > {
> > > > > > > >
> > > > > > > > ID[j] = osTabGet( n, 2 * j + 2, mytable );
> > > > > > > >
> > > > > > > > }
> > > > > > > > myarray = "ID"+n;
> > > > > > > > myarray = ID;
> > > > > > > > }
> > > > > > > >
> > > > > > > > Tom
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > > 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
> > > >
> > > > 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
>
>
>
>
Content-Description: "AVG certification"
No virus found in this incoming message.
Checked by AVG Free Edition.
Version: 7.5.432 / Virus Database: 268.16.9/622 - Release Date: 1/10/2007 2:52 PM
|