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Rkapers, I'm no expert on AB, but perhaps a "trick" used in MetaStock
may work here and force charts to show data gaps.
In MS, I always plot a known "gapless" data series above the main
price chart, such as an index (All Ords, S&P 500, etc) or known padded
data. This forces the main chart to display any missing data.
Suddenly, that nice chart plot that looked ok before, can look
distinctly anemic when all the missing data (i.e., non-trading
periods) shows up as data gaps. As a bonus, all indicators will now
display correct values.
jose '-)
--- In amibroker@xxxxxxxxxxxxxxx, "rkapers" <rkaper@x> wrote:
> Hello,
>
> Yesterday my datafeed stopped for 20 minutes. When the price data is
> shown in a chart in Amibroker I would expect to SEE this datagap in
> the chart.
>
> But Amibroker just pastes all price data one after another in the
> chart shoing up as one continuing line. This makes my indicators
> worthless because now it looks like the price makes a big jump in
> jsut one minute (instead of 20 minutes)
>
> I try to show a picture of this since i cannot explain easily (I
> hope it shows up properly on your screen):
>
> ACTUAL CHART:
> -- ----
> --- -- -- -
> - ---
>
> <-gap in chart
>
> -
> -- ---
> ---- ---- ----
> ---
> ?v?
> ... 2:01 2:02 2:03 2:04 2:25 2:26 2:27 ... <-- shown time axis
> ... | | | | | | |
>
> EXPECTED CHART:
> -- ----
> --- -- -- -
> - ---
>
>
>
>
>
> ----
> ---
>
> ... 2:03 2:04 2:05 2:06 .... 2:23 2:24 2:25 2:26
> ... | | | | | | | | |
>
> Has anyone noticed this? How can I arrange that Amibroker shows data
> as shown in the lower chart?
>
> Any help would be appreciated - this problem causes my trading
> systems to give false signals because the the system interprets the
> data gap as a sudden price move...
>
> Robert.
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