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Useful information pertaining
to chart objects can be displayed
by simply passing the mouse pointer
over those elements. For example,
by placing the mouse pointer over
a high-low-open-close symbol, the
underlying pricing data is revealed
in a concise annotation. |
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StockPlot™ supports
chart zooming, allowing the user
to select and expand the chart
across an arbitrary range of dates
by dragging the mouse across the
plot region. |
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StockPlot™ may
be deployed as either a client-side
applet for maximum interactivity,
a server-side servlet for reduced
download footprint or as a powerful
combination of the two. Initiating
a session with StockPlot™ as
a servlet-generated GIF, replacing
it at the user's option with an
interactive applet is particularly
effective. In this manner, the
user is presented with the chart
immediately, foregoing the more
extended download associated with
the full-featured applet. |
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All
aspects of StockPlot™ appearance
and functionality are configurable
ranging from data access to chart
presentation to exception handling.
The same XML that configures
the
applet may be employed to configure
the servlet, further reducing
the effort expended in deploying
a
unified servlet/applet charting
solution. The list of configurable
parameters includes:
All fonts, colors and line widths
Display of primary pricing information as a line, area, OHLC or candlestick chart.
Statistical indicators and comparison data
Status messages (enabling full internationalization)
Annotations
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StockPlot™ may
receive its data from any one of
several sources, thereby allowing
seamless integration into most
backend architectures. The primary
source is an open, XML formatted
data stream, compatible with many
of the emerging XML-aware applications. The primary source
is an open, XML formatted data
stream, compatible with many of
the emerging XML-aware applications.
Alternatively, a pluggable architecture
allows any Java™ object implementing
a simple, well-documented interface
to serve as a data source. In this
way, StockPlot™ may communicate
with many of the existing standards
for accessing real-time and historical
securities pricing data. |
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StockPlot™ provides
the ability to display an almost
unlimited number of statistical
indicators (studies) within the
primary chart as part of the pricing
data or in a separate chart utilizing
an independent scale. Possible
indicator types include:
Moving average
Exponential moving average
Stochastics
Bollinger bands
Moving Average Convergence-Divergence
Relative Strength
On Balance Volume
Price rate-of-change
Price oscillator
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In addition,
custom indicators may be imported
from any data source supported
by StockPlot™. |
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Annotations may
be positioned at any date and are
a powerful means of displaying
events and other time-sensitive
information. The text and formatting
of these annotations are fully
configurable through both the XML
and JavaScript™ interfaces. |
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When
deployed as an applet, StockPlot™ may
be configured at run-time with
a rich collection of JavaScript™-accessible
methods. These methods include
the ability to modify the following:
Chart appearance
Primary pricing symbol
Comparison pricing symbols
Indicators
Time frame and frequency
Addition and removal of annotations
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Errors relating
to invalid symbols, indicator parameters,
etc. are handled through a unified
exception handling mechanism through
which StockPlot™ displays
valuable diagnostic data to aid
the user in rectifying the problem. |
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Stockplot is
compatible with any browser or
operating system with a Java™ Virtual
Machine (JVM) |
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Support for dynamic
data from a variety of data sources,
including proprietary databases
and feeds |
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