This is documentation for Mathematica 8, which was
based on an earlier version of the Wolfram Language.

# LineBreakChart

 LineBreakChart makes a line break chart with prices at date . LineBreakChartmakes a line break chart of closing prices for the financial entity over the date range daterange. LineBreakChartmakes a line break chart where n bars in a row cause a reversal.
• LineBreakChart displays as a series of vertical bars where multiple prices may be included in a single bar, in which the price trend is accentuated.
• LineBreakChart considers previous prices for dates. If the previous prices have been increasing , then draw a new up bar if and a new down bar if ; otherwise, do not draw a new bar. This works similarly for decreasing prices. If there is no sequence of increasing or decreasing prices of length , the rule applies to the two previous prices.
• The dates are considered an ordered sequence of events, and are not shown on an absolute time scale.
• Data elements for LineBreakChart can be given in the following forms:
 {datei,pi} a pure date and price pair wi[{datei,pi},...] a date price and wrapper formi->mi a date price with metadata
• A bar may represent several date-price pairs and the corresponding wrappers will apply to the entire bar.
• Data not given in these forms is taken to be missing, and typically is excluded when generating the chart.
 {e1,e2,...},{"name",daterange} data without overall wrapper w[{e1,e2,...}],w[{"name",daterange}] data with overall wrapper
• The following wrappers can be used for data elements:
 Annotation[e,label] provide an annotation Button[e,action] define an action to execute when the element is clicked EventHandler[e,...] define a general event handler for the element Hyperlink[e,uri] make the element act as a hyperlink Labeled[e,...] display the element with labeling PopupWindow[e,cont] attach a popup window to the element StatusArea[e,label] display in the status area when the element is moused over Style[e,opts] show the element using the specified styles Tooltip[e,label] attach an arbitrary tooltip to the element
 Top,Bottom,Left,Right,Center positions within bar Above, Below, Before, After positions outside bar {{bx,by},{lx,ly}} scaled position in the label at scaled position in the bar
 AspectRatio 1/GoldenRatio overall ratio of width to height Axes True whether to draw axes ChartBaseStyle Automatic overall style for bars ChartElementFunction Automatic how to generate raw graphics for bars ChartElements Automatic graphics to use in each of the bars DateFunction Automatic how to convert dates to standard form EventLabels None events to label GridLines Automatic grid lines to draw GridLinesStyle Automatic style for grid lines PerformanceGoal \$PerformanceGoal aspects of performance to try to optimize ScalingFunctions None how to scale individual coordinates TrendStyle Automatic how to style up and down trends ScalingFunctions None how to scale the axis
• The arguments supplied to ChartElementFunction are the bar region , the date-price pairs list, and metadata .
• With the setting ChartElements, up and down will be used for up and down bars, respectively.
• EventLabels specifies a label associated with . The label will be displayed with the bar that has a date range that includes .
Chart the prices from a list of values:
Use three months of prices from FinancialData entities:
Specify a date range:
Chart the prices from a list of values:
 Out[2]=

Use three months of prices from FinancialData entities:
 Out[1]=
Specify a date range:
 Out[2]=
 Scope   (18)
Automatically get quarterly data for a financial entity:
Get data for a specific date range:
Get data from FinancialData:
Specify the number of bars required for a reversal:
Use wrappers on individual data:
Use wrappers on entire datasets:
Wrappers can be nested:
Override the default tooltips:
Use PopupWindow to provide additional drilldown information:
Button can be used to trigger any action:
Specify styles for up and down trends:
Use preset styles:
ChartBaseStyle can be used to set a style for all chart elements:
Style can be used to override styles:
Use built-in programmatically generated bars:
Use Labeled to add a label to a bar:
Use symbolic positions for label placement:
Label a list of date events:
Use Placed to control the positioning of labels, using the same positions as for Labeled:
 Options   (44)
Use the default axes:
Turn off the axes:
Axes origin is on the left by default:
Place the axis at the end of February:
Use named positions for the axis:
Use ChartBaseStyle to style bars:
ChartBaseStyle combines with TrendStyle:
ChartStyle may override settings for ChartBaseStyle:
Style may override settings for ChartBaseStyle:
Use any Graphics object for the bars:
Use different markers for up and down trends:
Graphical elements pick up the style from TrendStyle:
Use images for the bars:
Shapes are stretched to fill the bar by default:
Use a fixed height for the elements:
Use explicit sizes for width and height:
Get a list of built-in settings for ChartElementFunction:
For detailed settings, use PalettesChartElementSchemes:
These ChartElementFunction show the global scale:
Write a custom ChartElementFunction:
Events are labeled at the price by default:
Use Placed to control label placement
Use Placed to control label appearance:
Grid lines are used by default.
Turn off date grid lines:
Turn off price grid lines:
Place grid lines at month or year boundaries:
Use dotted grid lines for months and red grid lines for years:
By default, GridLinesStyle uses dotted grid lines with emphasized year grid lines:
Year grid lines are emphasized:
Style grid lines:
Generate a paired bar chart with interactive highlighting:
Emphasize performance by disabling interactive behaviors:
Typically, less memory is required for noninteractive charts:
LineBreakChart automatically draws all price dates:
Limit to a specific date range:
PlotRange only includes dates for which there is data:
Prices are normally shown on a linear scale:
Show prices on a logarithmic scale:
TrendStyle uses green for up trends and red for down trends by default:
Use black for up trends and red for down trends:
Use named styles:
TrendStyle combines with ChartBaseStyle:
With TrendStyle set to None, the base style is used for up trends and empty bars for down trends:
TrendStyle->style uses style for up trends and empty bars for down trends:
 Applications   (1)
Visualize the mean temperature in Chicago using WeatherData as a LineBreakChart:
Reversals occur when the price change exceeds the previous n bars:
LineBreakChart only shows time periods with significant change in price:
Use InteractiveTradingChart to visualize and interactively analyze financial data:
Use PointFigureChart, RenkoChart, and KagiChart to analyze the relation of financial prices and time:
Use DateListPlot to visualize financial data:
New in 8