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Hi,
So using your code could be a good way to know if a provider is reliable. e.g. I use DTN and I see this pretty often so maybe DTN is not that reliable.
I might switch to QuotePlus if they are reliable... and not too expensive.
You say there is no way around... There is absolutely nothing I can do with that?
Thanks,
Louis
2008/3/13, Don Lindberg <dlindber@xxxxxxxxxxxxx>:
Louis,
What you are seeing is the result of errors or holes in
your data. There isn't any way around that if you are using free Yahoo
data. I use Quotes Plus, and only rarely have that problem. The amount of holes
depends on the reliability of your data provider, but even the best of them are
not totally error free.
Donald F Lindberg
Hi,
I tried the way you say and it seems to work. However,
there are many errors in the bars, with often long bars which seems to go from
one stock open/close to the other open/close... Is there a way to avoid
such distortion?
Thanks a lot!
Louis
2008/3/11, Don Lindberg <dlindber@xxxxxxxxxxxxx>:
Louis,
I am not
exactly sure what you are saying about running against single ticker. It
really isn't of value. As for multiple tickers, here is the way I use it. On
Auto Analysis screen I define Filter to be the watchlist containing the
stocks that I want to be included in the Composite, set time frame, then run
Scan. Thats it! I don't know how you ran your multiple tickers, so I don't
know what your problem was. You do understand that if the watchlist has
multipe symbols you still only get One composite of ALL the symbols in that
watchlist, not one for each stock?
Donald F Lindberg
Hi Don,
I tried to run this code using multiple-tickers and it
didn't work. So I tried to use it running individual tickers once at
a time but each new ticker overrides the previous one so the result is
strictly the last ticker I scanned. Do you know how to solve this
problem?
Thanks!
Louis
2008/3/8, Don Lindberg <dlindber@xxxxxxxxxxxxx>:
Louis,
I
have pasted code below that will do what you want. This will give you
ATC with Open, High, Low, Close and Open Interest as counter.
Enjoy.
Donald F
Lindberg
/* AddToComposite statements
are for Automatic Analysis -> Scan */
AddToComposite( 1* L, "~MyIndex","L",1+2+4+8+16+128);
AddToComposite( 1* O, "~MyIndex","O",1+2+4+8+16+128);
AddToComposite( 1 * H, "~MyIndex","H",1+2+4+8+16+128);
AddToComposite( 1 * C, "~MyIndex","C",1+2+4+8+16+128);
AddToComposite( 1 * V, "~MyIndex","V",1+2+4+8+16+128);
/* add one to open intest field (we
use this field as a counter) */
AddToComposite( 1, "~MyIndex", "I" );
Buy = 0; // required by scan mode
/* this part is for Indicator
*/
V1=Foreign( "~MyIndex", "C") ;
V2=Foreign( "~MyIndex", "I") ;
Plot (( V1/V2),"My Index
Close",colorBlack,styleBar);
Hi Mike,
What I got from that link is this:
/* AddToComposite statements are for Automatic
Analysis -> Scan */
/* add Close price to our
index OHLC fields */
AddToComposite(Close,
"~MyIndex", "X" );
/* add one to open intest
field (we use this field as a counter) */
AddToComposite( 1, "~MyIndex", "I" );
Buy =
0; // required by scan mode
/* this part is
for Indicator */
Graph0 = Foreign( "~MyIndex",
"C" )/Foreign( "~MyIndex", "I" );
The problem
with this code is that it only shows the close. Would it be
possible to get a custom index with opening, close, high, low, volume
for the stocks I would
choose?
Thanks,
Louis
2008/3/7, Mike <sfclimbers@xxxxxxxxx>:
Louis,
I answered your earlier post in message 120865. I
believe that
Example 1 from the first link of that post is what
you are looking
for.
Mike
--- In amibroker@xxxxxxxxxxxxxxx, "Louis
Préfontaine"
<rockprog80@xxx>
wrote:
>
> Hi Mike,
>
> Do you know how to
create an artificial index with multiple tickers?
>
>
Thanks,
>
> Louis
>
> 2008/3/6,
Mike <sfclimbers@xxx>:
> >
> >
Thomas,
> >
> > You only need to run the formula
once (use selected symbol option
> > from AA window on any
symbol), then you can reference the symbol
from
> > any
_other_ script as applied against any number of symbols.
>
>
> > Or, if you are trying to include the code segment
within some
other
> > script applied to multiple
symbols, what about wrapping the logic
> > inside an if
condition such that it only gets executed the first
time
>
> (e.g. use a static variable to control the flow
> > http://www.amibroker.com/guide/afl/afl_view.php?id=263
)
> >
> > ...
> > if
(StaticVarGet("ATCFlag") != 1) {
> >
AddToComposite(...);
> >
AddToComposite(...);
> >
AddToComposite(...);
> >
AddToComposite(...);
> > StaticVarSet("ATCFlag",
1);
> > }
> >
> > I've never used
statics, so double check the syntax above, and
test
> >
what happens when the variable is Null.
> >
>
>
> > Mike
> >
> > --- In amibroker@xxxxxxxxxxxxxxx
<amibroker%40yahoogroups.com>,
Thomas
> > Ludwig <Thomas.Ludwig@>
>
> wrote:
> > >
> > > Mike,
> >
>
> > > thanks for your reply. In fact, I had tried
the ATC solution
> > before. The
> > > problem:
When used as an indicator (as mentioned in my previous
> >
post)
> > > the chart looks as expected. However, with
ATC the Open, High,
Low
> > and
> > > Close
of both time series are added up. Thus, the logic of my
> >
formulas
> > > that works for the indicator code doesn't
work with ATC. Any
idea
> > how
> > > to
modfiy that?
> > >
> > > Best
regards,
> > >
> > > Thomas
> >
>
> > > > Have a look at AddToComposite
>
> > > http://www.amibroker.com/guide/afl/afl_view.php?id=7
>
> > >
> > > >
AddToComposite(Foreign("846900","o"), "~MyDAX", "O");
>
> > >
> > > >
AddToComposite(IIF(IsEmpty(Foreign("A0C4CA","h")),Foreign
>
> > >
("846900","h"),Max(Foreign("846900","h"),Foreign
> > >
> ("A0C4CA","h"))), "~MyDAX", "H");
> > >
>
> > > >
AddToComposite(IIf(IsEmpty(Foreign("A0C4CA","l")),Foreign
>
> > >
("846900","l"),Min(Foreign("846900","l"),Foreign
> > >
> ("A0C4CA","l"))), "~MyDAX", "L");
> > >
>
> > > >
AddToComposite(IIf(IsEmpty(Foreign("A0C4CA","c")),Foreign
>
> > > ("846900","c"),Foreign("A0C4CA","c")), "~MyDAX",
"C");
> > > >
> > > > New symbol
~MyDAX will appear under Market253 fully populated
> > >
> according to your logic.
> > > >
> >
> > Add flags for exploration and backtesting as
needed.
> > > >
> > > > Mike
>
> > >
> > > > --- In amibroker@xxxxxxxxxxxxxxx
<amibroker% 40yahoogroups.com>, Thomas
> > Ludwig <Thomas.Ludwig@>
> >
> >
> > > > wrote:
> > > > >
Hello,
> > > > >
> > > > > I
want to create an artificial ticker from two existing
> >
tickers. If
> > > >
> > > > I
do
> > > >
> > > > > it this
way:
> > > > >
> > > > >
O1=Foreign("846900","o");
> > > > >
H1=IIf(IsEmpty(Foreign("A0C4CA","h")),Foreign
("846900","h"),Max
>
> > >
> > > >
(Foreign("846900","h"),Foreign("A0C4CA","h")));
> > >
>
> > > > >
L1=IIf(IsEmpty(Foreign("A0C4CA","l")),Foreign
("846900","l"),Min
>
> > >
> > > >
(Foreign("846900","l"),Foreign("A0C4CA","l")));
> > >
>
> > > > >
C1=IIf(IsEmpty(Foreign("A0C4CA","c")),Foreign
> >
("846900","c"),Foreign
> > > >
> > > >
("A0C4CA","c"));
> > > >
> > > > >
PlotOHLC(O1,H1,L1,C1,"MyDAX",colorBlack,styleCandle);
>
> > > >
> > > > >
> > >
> > ... I get it as an indicator - but that's not what I want.
In
> > order
> > > >
> > >
> to
> > > >
> > > > > get an
artificial ticker I guess that I have to export the
> >
values
> > > >
> > > > to an
>
> > >
> > > > > ASCII file and import it
again using fputs() and fgets()
but I'm
> > >
>
> > > > not
> > > >
> >
> > > sure how to do it. Any suggestions would be highly
welcome.
> > > > >
> > > > >
Regards,
> > > > >
> > > > >
Thomas
> > > >
> > > > 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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