PriceSeriesProvider Class (Component)
The PriceSeriesProvider allows access to current and historical price values from a PriceSeries collection for a specified Symbol. The Updated event is called whenever a change occurs in the referenced data.
Indexed values in a PriceSeries are equivalent to bar values in Chart or gird row based on a specified symbol, interval, and bar range where the index represents 'bars ago'.
Typically, you will use the Toolbox to add a component to your EasyLanguage document. Click and drag the name PriceSeriesProvider into your document from the Toolbox. The name of the provider appears in the component tray at the bottom of your document. By default, the name is followed by a number to identify multiple instances of the component.
Open the Properties editor and locate the Symbol property and the Interval and Range group of properties under "Filters". The entries in any or all of these fields determines the data that is included in the price series collection for a specified symbol. By default, the interval is set to 5 min bars with a range of 1 bar back.
To reference property values from a price series in EasyLanguage code, use PriceSeriesName followed by a 'dot operator' and the property name. Use a 'barsago' index in square brackets ( e.g. myPrices.High[4] ) to access values from indexed properties. Available price series properties will appear in the Autocomplete list as soon as you type the 'dot' after PriceSeriesName. Refer to the property descriptions below or in the EasyLanguage dictionary for more information about each property.
Value1 = PriceSeriesProvider1.Close[1]; // gets the Close of 1 bar ago from the specified price series provider.
For general information about providers, refer to Provider Classes.
Namespace: tsdata.marketdata
Properties
Additional
properties, methods, and events are described in the classes listed
under Inheritance Hierarchy (see below).
| Name | Type | Description | |
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Close[index] | double | Gets the closing price of the bar interval with the specified index. |
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Count | int | Gets the number of available historical bar intervals in the price series. |
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Data[index] | object | Gets a specified PriceSeries object based on the index. |
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High[index] | double | Gets the high price of the bar interval with the specified index. |
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IncludeTicksInfo | bool | True to include Ticks, TicksDown, TicksUnchanged, and TicksUp in the price series. |
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IncludeVolumeInfo | bool | True to include Volume, VolumeDown, VolumeUnchanged, and VolumeUp in the price series. |
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Interval | object | Sets and gets the DataInterval values for the price bars. |
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LastBarIsClosed | bool | True when the last bar is closed and next bar not yet opened. |
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LastBarIsOpen | bool | True when the last bar is open and active. |
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LastBarIsSessionClosed | bool | True when the session ended on the last bar. |
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Low[index] | double | Gets the low price of the bar interval with the specified index. |
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OpenInterest[index] | double | Gets the number of outstanding contracts for an option within the specified interval. |
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Open[index] | double | Gets the opening price of the bar interval with the specified index. |
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Range | object | Sets and gets the DataRange values for the price bars. |
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SessionName | string | Sets and gets the name of the session. |
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Symbol | string | Sets and gets the Symbol whose price bars are referenced. |
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Ticks[index] | double | Gets the total number of trades within the specified bar interval. |
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TicksDown[index] | double | Gets the number of trades where the price is down from the previous trade in a bar. |
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TicksUp[index] | double | Gets the number of trades where the price is up from the previous trade in a bar. |
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Time[index] | datetime | Gets the time stamp of the bar interval with the specified index. |
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Volume[index] | double | Gets the total trade volume (shares/contracts) within the specified bar interval. |
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VolumeDown[index] | double | Gets the trade volume where the price is down from the previous trade in a bar. |
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VolumeUp[index] | double | Gets the trade volume where the price is up from the previous trade in a bar. |
Events
| Name | Description | |
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Updated | Occurs whenever the PriceSeriesProvider object is updated. See PriceSeriesUpdatedEventArgs for the properties returned by the handler's args parameter. |
Methods
| Name | Description | |
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Create() | Initializes a new instance of the class. |
Example
The following example uses a pair of PriceSeriesProviders to calculate and display the daily relative percent change between the current symbol (a row in RadarScreen) and a user specifiable reference symbols, such as SPY.
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PriceSeriesProvider indicator for Chart Analysis and RadarScreen |
Import Example- Click on the Import Example link to import the example into TradeStation.
- Go to the TradeStation platform and create a Chart Analysis window or a RadarScreen window containing multiple symbols. Use the Insert - Indicator menu sequence and add to the window.
- To review or modify the example code, go to the TS Development Environment and open indicator in the EasyLanguage Editor.