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Glenn,
I was surprised to see this strange Foreign behavior [for fixup=0].
It reproduces every second day the last existing value !!!!
Perhaps Tomasz should take a look.
Thank you for the info
Dimitris Tsokakis
--- In amibroker@xxxxxxxxxxxxxxx, "Glenn" <glennokb@xxxx> wrote:
> Hi Dimitris,
>
> Thanks for your reply.
>
> I had actually tried IsEmpty() and IsNull() but I found that when I
plot for
> example:
>
> x=Foreign("A-D","V",0);
> Plot(x,"Adv-Dec Volume",colorBlack,1);
>
> ...and say for the last week I missed data in A-D and my chart has
the
> last week of data then the above plot has every SECOND day plotted
as
> the last value of the advance decline volume.
>
> If I use IsEmpty() and plot this as a symbol on the main chart,
every
> second day will miss the symbol.
>
> I read in the manual:
> -----------------------------------------------------
> foreign( TICKER, DATAFIELD, fixup = 1)
>
> The last parameter - fixup - with the default value of 1 - causes
filling
> the holes in the data with previous values (behaviour introduced in
> 3.90.3), if fixup is 0 - the holes are not fixed (the old, pre-
3.90.3
> behaviour)
> -----------------------------------------------------
>
> I didn't want the holes filled so I have placed a zero as
the "fixup" but as
> I mentioned above this doesn't seem to work.
>
> Any ideas? Thanks
>
> Cheers ,Glenn
>
> --- In amibroker@xxxxxxxxxxxxxxx, "DIMITRIS TSOKAKIS"
> <TSOKAKIS@xxxx> wrote:
> > The non-updated bars should be without data, ie empty.
> > There is an AFL function for this purpose IsEmpty(), which will
give
> > an output 1, whenever the array [your A/D ticker] is empty.
> > Then with Plotshapes you may put a visual sign on your chart.
> > Dimitris Tsokakis
> > --- In amibroker@xxxxxxxxxxxxxxx, "Glenn" <glennokb@xxxx> wrote:
> > > Hi,
> > >
> > > I have advance-decline data that I use (I download it from a
3rd
> > party)
> > > and on my price chart I would like to see if I have the latest
A-D
> > data
> > > downloaded.
> > >
> > > For example if I forget to update the A-D in the last 3 days
but
> > have the
> > > latest stock prices on my price chart, I would like a star
symbol
> > (or
> > > whatever) displayed on the chart on each of the last 3 days.
> > >
> > > I have tried loads of stuff using the foreign function to see
if
> > the A-D
> > > data's last date matches the stock I'm looking at but can't get
it.
> > Thanks.
> > >
> > > Cheers Glenn
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