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Hi Tomasz:
Nice improvements!
> Note that AmiQuote currently supports a new command line
> parameter: /autoupdate. This option forces AmiQuote to perform
> automatic update procedure without user intervention.
> You may setup you custom tools menu in AmiBroker to call AmiQuote
> with this argument:
>
> C:\Program Files\AmiBroker\AmiQuote\Quote.EXE /autoupdate
>
> If you do so, you will be able to update your US database with a
> single click.
I'm unable to get this one to work...nothing happens. Do I have to
have amiquote running? Do you post any messages when complete?
Also, it appears you use the last date from the 1st ticker in the
database for the starting date of ALL tickers in the database? A
more robust solution (although slower) would be to fetch the last
date from the database for each ticker individually.
If you're keeping up a large database (all NYSE/NASD/AMEX stocks)
I've found Yahoo's data to be very unreliable w.r.t. availability.
Depending on the day (and the moon's phase!) some tickers (they
change by day) are NEVER available on the daily page and their
availability from the historical page is sometimes several days
later. So it's possible that a previous update would have updated
the database incompletely and a fresh update, assuming a starting
date of the 1st ticker, would leave some gaps in data for subsequent
tickers that didn't get updated because the data wasn't available
when the previous update occurred.
I currently use the (fast!) daily yahoo script that you wrote
followed by my own script to evaluate the results of the download for
each ticker that writes out a .tls file for any stale tickers after
the update. I then use amiquote to download the missing tickers from
the historical page which is more reliable than the daily page as far
as availability. Even then I'm not sure that I've got them all as
many (500+) don't trade every day.
Thanks and keep up the good work!
Jim
--- In amibroker@xxxx, "Tomasz Janeczko" <tj@xxxx> wrote:
> Hello,
>
> Before you ask "How [...] should I use this tool?" below you will
find the instructions
> (this is an excerpt from ReadMe2.html file supplied in AmiQuote
archive).
>
> Best regards,
> Tomasz Janeczko
> ===============
> AmiBroker - the comprehensive share manager.
> http://www.amibroker.com
> QUICK START
>
> Note: this procedure works only if you have AmiBroker installed:
>
> 1.. Launch AmiBroker and AmiQuote
> 2.. Choose Tools->Auto-update AmiBroker database (or
corresponding toolbar button)
> USAGE
>
> Automatic update
>
> The easiest method to work with AmiQuote and AmiBroker is to use
automatic update procedure. Just run AmiBroker and AmiQuote and
choose Tools->Auto-update AmiBroker database. This method updates
historical quotes from the last date present in AmiBroker upto today.
When performing automatic update, AmiQuote performs internally 4
steps
> a) retrieves the ticker list from AmiBroker (all stocks loaded
currently in AmiBroker);
> b) gets the last quotation date available in AmiBroker;
> c) performs historical download from last date upto today;
> d) instructs AmiBroker to import downloaded files.
>
> Please note that this procedure works only for US & Canada
markets, because Yahoo provides historical quotes only for that
markets.
>
> Note that AmiQuote currently supports a new command line
parameter: /autoupdate. This option forces AmiQuote to perform
automatic update procedure without user intervention.
> You may setup you custom tools menu in AmiBroker to call AmiQuote
with this argument:
>
> C:\Program Files\AmiBroker\AmiQuote\Quote.EXE /autoupdate
>
> If you do so, you will be able to update your US database with a
single click.
>
> Manual operation
>
> Automatic mode is nice but there are cases when you have to
perform some tasks manually. There is a good old document describing
that mode of operation at: http://www.amibroker.com/docs/ab304.html .
Everything written in this document remains valid with one exception -
now importing to AmiBroker are performed automatically if you have
Automatic import checkbox marked.
>
> There are also several cases when you prefer to do things
manualy, then please don't forget about some useful tools available
at your fingertips:
>
> File->Open, File->Save, File->Save As
>
> These functions enable you to load and save your edited ticker
lists for future repeated use.
>
> Edit->Add tickers
>
> This function allows you to add the tickers to the list. Just
type space separated tickers into the field that will show up when
you choose this function.
>
> Edit->Delete tickers
>
> This function allows you to delete tickers from the list. Just
select the items you want to delete from the list view (multiple
selection possible by holding SHIFT or CTRL key while clicking on
items), and choose this function.
>
> Edit->Mark all, Edit->Unmark all, Edit->Toggle, Edit->Mark
selection, Edit->Unmark selection
>
> These functions allow you to mark the tickers for download.
Please note that AmiQuote puts a checkmark before ticker name in the
list view. ONLY MARKED items will be downloaded. This allows you to
perform selective downloads/updates.
>
> View->Refresh
>
> Basically AmiQuote handles refreshes by itself when needed. For
example if you changed the date range, the list will be refreshed
before starting download. But there are some cases when you may want
to refresh the list by yourself. For example if you downloaded and
imported quotes once and want to do this again you would need to
choose this function. The Refresh function simply applies all date
and type settings to the URLs listed, and MARKS all tickers for a new
download.
>
> Tools->Import into AmiBroker
>
> This function is useful if you want to import just downloaded
quotes into AmiBroker but you have Automatic import checkbox cleared.
>
> Tools->Get tickers from AmiBroker
>
> This function retrieves all stocks from currently loaded
AmiBroker database and fills the AmiQuote ticker list with them.
>
> Tools->Get last update date
>
> This function retrieves the date of the most recent quotation
of the first stock present in currently loaded AmiBroker database and
sets the From date to this date.
>
> Tools->Settings
>
> Displays the settings window where you can define the
destination directory where all downloads are stored. Note that blank
destination directory means that downloads will be stored in the
current working directory (in most cases this is the folder from
where current .TLS file was loaded).
>
> In this window you can also change the mode of writing the
files. By default historical files are overwritten while daily files
get appended. This is recommended setup. Appending daily files simply
allows you to create intra-day historical files when you do the
updates daily. You may change this behaviour for your particular
purpose.
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