On Apache
Under GNU General Public License
2012-05-24 04:14 @38.107.179.240 Crawled by CCBot/1.0 (+http://www.commoncrawl.org/bot.html)
Finance::Quote(3pm) User Contributed Perl Documentation Finance::Quote(3pm)
NAME
Finance::Quote - Get stock and mutual fund quotes from various exchanges
SYNOPSIS
use Finance::Quote;
$q = Finance::Quote->new;
$q->timeout(60);
$conversion_rate = $q->currency("AUD","USD");
$q->set_currency("EUR"); # Return all info in Euros.
$q->require_labels(qw/price date high low volume/);
$q->failover(1); # Set failover support (on by default).
%quotes = $q->fetch("nasdaq",@stocks);
$hashref = $q->fetch("nyse",@stocks);
DESCRIPTION
This module gets stock quotes from various internet sources, including Yahoo! Finance,
Fidelity Investments, and the Australian Stock Exchange. There are two methods of using
this module -- a functional interface that is deprecated, and an object-orientated method
that provides greater flexibility and stability.
With the exception of straight currency exchange rates, all information is returned as a
two-dimensional hash (or a reference to such a hash, if called in a scalar context). For
example:
%info = $q->fetch("australia","CML");
print "The price of CML is ".$info{"CML","price"};
The first part of the hash (eg, "CML") is referred to as the stock. The second part (in
this case, "price") is referred to as the label.
LABELS
When information about a stock is returned, the following standard labels may be used.
Some custom-written modules may use labels not mentioned here. If you wish to be certain
that you obtain a certain set of labels for a given stock, you can specify that using
require_labels().
name Company or Mutual Fund Name
last Last Price
high Highest trade today
low Lowest trade today
date Last Trade Date (MM/DD/YY format)
time Last Trade Time
net Net Change
p_change Percent Change from previous day's close
volume Volume
avg_vol Average Daily Vol
bid Bid
ask Ask
close Previous Close
open Today's Open
day_range Day's Range
year_range 52-Week Range
eps Earnings per Share
pe P/E Ratio
div_date Dividend Pay Date
div Dividend per Share
div_yield Dividend Yield
cap Market Capitalization
ex_div Ex-Dividend Date.
nav Net Asset Value
yield Yield (usually 30 day avg)
exchange The exchange the information was obtained from.
success Did the stock successfully return information? (true/false)
errormsg If success is false, this field may contain the reason why.
method The module (as could be passed to fetch) which found
this information.
If all stock lookups fail (possibly because of a failed connection) then the empty list
may be returned, or undef in a scalar context.
AVAILABLE METHODS
NEW
my $q = Finance::Quote->new;
my $q = Finance::Quote->new("ASX");
my $q = Finance::Quote->new("-defaults", "CustomModule");
With no arguents, this creates a new Finance::Quote object with the default methods. If
the environment variable FQ_LOAD_QUOTELET is set, then the contents of FQ_LOAD_QUOTELET
(split on whitespace) will be used as the argument list. This allows users to load their
own custom modules without having to change existing code. If you do not want users to be
able to load their own modules at run-time, pass an explicit argumetn to ->new() (usually
"-defaults").
When new() is passed one or more arguments, an object is created with only the specified
modules loaded. If the first argument is "-defaults", then the default modules will be
loaded first, followed by any other specified modules.
Note that the FQ_LOAD_QUOTELET environment variable must begin with "-defaults" if you
wish the default modules to be loaded.
Any modules specified will automatically be looked for in the Finance::Quote:: module-
space. Hence, Finance::Quote->new("ASX") will load the module Finance::Quote::ASX.
Please read the Finance::Quote hacker's guide for information on how to create new modules
for Finance::Quote.
FETCH
my %stocks = $q->fetch("usa","IBM","MSFT","LNUX");
my $hashref = $q->fetch("usa","IBM","MSFT","LNUX");
Fetch takes an exchange as its first argument. The second and remaining arguments are
treated as stock-names. In the standard Finance::Quote distribution, the following
exchanges are recognised:
australia Australan Stock Exchange
dwsfunds Deutsche Bank Gruppe funds
fidelity Fidelity Investments
tiaacref TIAA-CREF
troweprice T. Rowe Price
europe European Markets
canada Canadian Markets
usa USA Markets
nyse New York Stock Exchange
nasdaq NASDAQ
uk_unit_trusts UK Unit Trusts
vanguard Vanguard Investments
vwd Vereinigte Wirtschaftsdienste GmbH
When called in an array context, a hash is returned. In a scalar context, a reference to
a hash will be returned. The structure of this hash is described earlier in this
document.
The fetch method automatically arranges for failover support and currency conversion if
requested.
If you wish to fetch information from only one particular source, then consult the
documentation of that sub-module for further information.
SOURCES
my @sources = $q->sources;
my $listref = $q->sources;
The sources method returns a list of sources that have currently been loaded and can be
passed to the fetch method. If you're providing a user with a list of sources to choose
from, then it is recommended that you use this method.
CURRENCY
$conversion_rate = $q->currency("USD","AUD");
The currency method takes two arguments, and returns a conversion rate that can be used to
convert from the first currency into the second. In the example above, we've requested
the factor that would convert US dollars into Australian dollars.
The currency method will return a false value if a given currency conversion cannot be
fetched.
At the moment, currency rates are fetched from Yahoo!, and the information returned is
governed by Yahoo!'s terms and conditions. See Finance::Quote::Yahoo for more
information.
SET_CURRENCY
$q->set_currency("FRF"); # Get results in French Francs.
The set_currency method can be used to request that all information be returned in the
specified currency. Note that this increases the chance stock-lookup failure, as remote
requests must be made to fetch both the stock information and the currency rates. In
order to improve reliability and speed performance, currency conversion rates are cached
and are assumed not to change for the duration of the Finance::Quote object.
At this time, currency conversions are only looked up using Yahoo!'s services, and hence
information obtained with automatic currency conversion is bound by Yahoo!'s terms and
conditions.
FAILOVER
$q->failover(1); # Set automatic failover support.
$q->failover(0); # Disable failover support.
The failover method takes a single argument which either sets (if true) or unsets (if
false) automatic failover support. If automatic failover support is enabled (default)
then multiple information sources will be tried if one or more sources fail to return the
requested information. Failover support will significantly increase the time spent
looking for a non-existant stock.
If the failover method is called with no arguments, or with an undefined argument, it will
return the current failover state (true/false).
USER_AGENT
my $ua = $q->user_agent;
The user_agent method returns the LWP::UserAgent object that Finance::Quote and its
helpers use. Normally this would not be useful to an application, however it is possible
to modify the user-agent directly using this method:
$q->user_agent->timeout(10); # Set the timeout directly.
SCALE_FIELD
my $pounds = $q->scale_field($item_in_pence,0.01);
The scale_field() function is a helper that can scale complex fields such as ranges (eg,
"102.5 - 103.8") and other fields where the numbers should be scaled but any surrounding
text preserved. It's most useful in writing new Finance::Quote modules where you may
retrieve information in a non-ISO4217 unit (such as cents) and would like to scale it to a
more useful unit (like dollars).
ENVIRONMENT
Finance::Quote respects all environment that your installed version of LWP::UserAgent
respects. Most importantly, it respects the http_proxy environment variable.
BUGS
There are no ways for a user to define a failover list.
The two-dimensional hash is a somewhat unwieldly method of passing around information when
compared to references. A future release is planned that will allow for information to be
returned in a more flexible $hash{$stock}{$label} style format.
There is no way to override the default behaviour to cache currency conversion rates.
COPYRIGHT
Copyright 1998, Dj Padzensky
Copyright 1998, 1999 Linas Vepstas
Copyright 2000, Yannick LE NY (update for Yahoo Europe and YahooQuote)
Copyright 2000-2001, Paul Fenwick (updates for ASX, maintainence and release)
Copyright 2000-2001, Brent Neal (update for TIAA-CREF)
Copyright 2000 Volker Stuerzl (DWS and VWD support)
Copyright 2000 Keith Refson (Trustnet support)
Copyright 2001 Rob Sessink (AEX support)
Copyright 2001 Leigh Wedding (ASX updates)
Copyright 2001 Tobias Vancura (Fool support)
Copyright 2001 James Treacy (TD Waterhouse support)
This program is free software; you can redistribute it and/or modify it under the terms of
the GNU General Public License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
Currency information fetched through this module is bound by Yahoo!'s terms and conditons.
Other copyrights and conditions may apply to data fetched through this module. Please
refer to the sub-modules for further information.
AUTHORS
Dj Padzensky (C<djpadz AT padz.net>), PadzNet, Inc.
Linas Vepstas (C<linas AT linas.org>)
Yannick LE NY (C<y-le-ny AT ifrance.com>)
Paul Fenwick (C<pjf AT schools.au>)
Brent Neal (C<brentn AT users.net>)
Volker Stuerzl (C<volker.stuerzl AT gmx.de>)
Keith Refson (C<Keith.Refson#earth.ox.ac.uk>)
Rob Sessink (C<rob_ses AT users.net>)
Leigh Wedding (C<leigh.wedding AT telstra.com>)
Tobias Vancura (C<tvancura AT altavista.net>)
James Treacy (C<treacy AT debian.org>)
The Finance::Quote home page can be found at http://finance-quote.sourceforge.net/
The Finance::YahooQuote home page can be found at http://www.padz.net/~djpadz/YahooQuote/
The GnuCash home page can be found at http://www.gnucash.org/
SEE ALSO
Finance::Quote::AEX, Finance::Quote::ASX, Finance::Quote::Cdnfundlibrary,
Finance::Quote::DWS, Finance::Quote::Fidelity, Finance::Quote::FinanceCanada,
Finance::Quote::Fool, Finance::Quote::FTPortfolios, Finance::Quote::Tdefunds,
Finance::Quote::Tdwaterhouse, Finance::Quote::Tiaacref, Finance::Quote::Troweprice,
Finance::Quote::Trustnet, Finance::Quote::VWD, Finance::Quote::Yahoo::Australia,
Finance::Quote::Yahoo::Europe, Finance::Quote::Yahoo::USA, LWP::UserAgent
You should have also received the Finance::Quote hacker's guide with this package. Please
read it if you are interested in adding extra methods to this package. The hacker's guide
can also be found on the Finance::Quote website, http://finance-quote.sourceforge.net/
perl v5.10.0 2010-01-18 Finance::Quote(3pm)
Generated by $Id: phpMan.php,v 4.49 2006/02/26 13:18:18 chedong Exp $ Author: Che Dong
On Apache
Under GNU General Public License
2012-05-24 04:14 @38.107.179.240 Crawled by CCBot/1.0 (+http://www.commoncrawl.org/bot.html)