TradeStation Development Environment

Format Analysis Technique Properties - Scaling

This tab is used to modify the scaling settings for the y-axis of an indicator in a Chart Analysis window or the scaling properties of an EasyLanguage document. When applied to it's own sub-graph, the y-axis displays values specific to the indicator.

• Access using the File > Properties menu sequence while editing an analysis technique document, then selecting the Scaling tab.

The following section headings appear on the tab

Axis 

Change the axis and sub-graph used to plot your indicator.

• Scale On - Select one of the following to set the axis:  

  Same Axis As Underlying Data - the indicator will plot on the sub-graph associated with the default data stream (current symbol). The other options on the Scaling tab will be grayed out since they are not active with this setting.

  Right, Left, or No Axis - chooses the side of the specified sub-graph on which to display the indicator axis scale.  

• Sub-graph - select the number of the sub-graph on which to plot the actual indicator.  Selecting Hidden will cause the indicator to not be displayed on any Sub-graph.

Scale Type  

Select on of the following to change the vertical scaling to use for the indicator.

• Linear - will produce a scale with regularly spaced increments that represent the same value.  For example, a move from 12 to 14 would take up exactly the same amount of vertical space as a move from 26 to 28.  Another way to look at it is that on a linear axis, each y-axis increment of 1 point will be the equally close to each other increment.
• Semi-Log - will produce a scale weighted towards the percent of change. For example, a move from 16 to 18, which is an 11 percent increase, is given more space on the scale than a move from 30 to 32, which is a 6 percent increase.  Another way to look at it is that on a semi-log axis, the y-axis increments of 1 point at the top of the axis will be closer together that the same 1 point increments at the bottom of the axis.

Scale Range

Change the scale range and margin settings.

• Automatic: Scale Range Based On - Use to select whether to scale based on the Data Range On Screen or the Entire Data Range.

  Sub-graph Margins - specify how much additional Lower and Upper margin space to display at the top and bottom of the indicator's sub-graph based on a percentage of the sub-graph size for each of the top and bottom margins

• Fixed - Use to set a specific Minimum and Maximum data value to be used to determine the range of a sub-graph.

 You can click and drag the bars up/down in Fixed mode to automatically adjust the Min and Max range values.

• Movement Size - Use to specify the approximate screen size (in inches or centimeters)  that will represent a specified number of price points.

Display

Change additional display settings for the chart scaling.

• Custom Axis Increment, - Check this setting and enter the number of points for y-axis increment spacing.

 Numbers may not appear next to each increment marker since number spacing is automatically determined based on chart and screen size.

• Custom Decimal Places - Check this setting and enter the number of decimal places to use for each displayed y-axis data number.
• Divide Axis Labels - Check this setting to display y-axis numbers based on the raw data value divided by selected value.
• Use 1000s Separator - Check this setting to specify whether y-axis numbers are displayed with or without a separator symbol. (i.e. 11,231  vs  11231).

Default

• Click this button to use the current settings as the default for all future analysis techniques. A message appears to confirm if you want to use your settings as the default.
  

  The Preview pane displays a sample of the analysis technique using the current settings.

• Click OK to apply changes or Cancel to exit without changes.