Chart Scaling

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The Price Scale is located on the left and/or the right side of the chart and consists of a vertical line with marks indicating values and identified by Labels.

The values on the scale are specific to the symbol or indicator plotted on the chart.

The scale represents the value range within which the chart is plotted. To determine the value of a point on a chart the vertical position of the point is referenced to a value on the Price Scale.

The Range of the Price Scale and the chart's top and bottom Margins can be set.

The Labels, identifying scale's marks, can be customized.

Five Price Scale range modes (scaling modes) are available:

Screen
Entire Series
User Defined
Movement Size
Price Range

Two Scaling Types are available (except for the Movement Size scaling mode):

Linear
Semi-Log

Each scale range setting and scaling type offers its own advantages.


Expanding Scale to Indicator

If the price scale is based on the data series and an indicator is overlaid on the data series, the range of the price scale may not be wide enough to capture all parts of the indicator. In this case, the parts of the indicator that fall outside of the range of the price scale will not be displayed in the chart.

To automatically expand the range of the price scale so that it will capture all parts of the indicator:

  1. Open the Format Instruments window.

    To open the Format Instruments window, click the Format Instruments Format Instrument.png icon on the main toolbar;
    if the Format Objects window appears, select the symbol and click the Format button.

    The Format Instruments window can also be opened by one of the following methods:
      - Position the mouse pointer over the symbol's data series; double-click once the Pointer Pointer.png changes into a Hand Hand.png;
      - Position the mouse pointer over the symbol's data series; once the Pointer Pointer.png changes into a Hand Hand.png right-click and then click Format Symbol Name;
      - Right-click on an empty area of the chart and then click Format Instruments; if the Format Objects window appears, select the symbol and click the Format button;
      - Select Format in the main menu and click Instrument; if the Format Objects window appears, select the symbol and click the Format button.

  2. Select the Scaling tab.
  3. In the General section, select Expand Scale to Indicators.


Note: This feature only works if the indicator's scaling range is set to Same as Symbol.


Overlaying Data Series

When two or more data series exist in the same subchart, it is possible to overlay the data series:

  1. Open the Format Instruments window.

    To open the Format Instruments window, click the Format Instruments Format Instrument.png icon on the main toolbar;
    if the Format Objects window appears, select the symbol and click the Format button.

    The Format Instruments window can also be opened by one of the following methods:
      - Position the mouse pointer over the symbol's data series; double-click once the Pointer Pointer.png changes into a Hand Hand.png;
      - Position the mouse pointer over the symbol's data series; once the Pointer Pointer.png changes into a Hand Hand.png right-click and then click Format Symbol Name;
      - Right-click on an empty area of the chart and then click Format Instruments; if the Format Objects window appears, select the symbol and click the Format button;
      - Select Format in the main menu and click Instrument; if the Format Objects window appears, select the symbol and click the Format button.

  2. Select the Scaling tab.
  3. In the General section, select Overlay Data Series.


By default, the price scale of the first data series is shown.

To change to the price scale of another data series:

  1. Right-click on the price scale.
  2. Select the data series in the window.


Tip: Two different Price Scales can be displayed at the same time by setting the left and right price scales.