Scale

The Vertical Price Scale properties are mutually exclusive (only one can be selected). The radio buttons in this group enable you to adjust the price scale.

Property	Function
Linear	Linear price scaling is what you are used to seeing in a bar chart. The price scale is set by an instrument's trading units, and the bar plots linearly along the scale.
Log	Logarithmic scaling enables you to compare percentage price changes rather than absolute price changes. Plotting prices on a logarithmic scale allows the presentation of a uniform picture of performance and permits the easy comparison of instruments that differ widely in dollar amount. Logarithmic scaling is most appropriate when comparing long term charts that cover a wide range of price levels. To change the active chart window to logarithmic scaling, display the Chart Properties dialog's Scale tab and select the Logarithmic check box. To return the chart to a normal, or linear, scale, display the Chart Properties dialog's Scale tab and select the Linear check box.
Percent Change	Percent change charts are used to compare the percent change in price from the close of the left-most bar. Percent change charts are often used to compare the performance of different instruments. To change the active chart window to percent change scaling, display the Chart Properties dialog’s Scale tab and select the Percent Change check box. To return the chart to a normal, or linear, scale, display the Chart Properties dialog’s Scale tab and select the Percent Change check box. When a percent change chart is initially drawn, all percentages are calculated from the left-most bar. To specify a certain bar as your base for percent change, place the cursor on that bar and again re-select Percent Change from the Chart Properties dialog.

The Horizontal Scale group contains time base properties:

Property

Function

Width

The Width field controls which database (tick, 15 minute, or daily) you want to access.

Setting	Function
EQUAL-TICK	Equal-tick charts draw bars made up of a set number of ticks. Enter the number of ticks in the Ticks field.
MINUTE	Minute charts draw bars made up of the number of ticks that occur in a given time period. Enter the number of minutes in the Minutes field.
MULTI-DAY	Multi-Day charts draw bars made up of a set number of days. Enter the number of days in the Days field.
DAILY	Daily charts draw bars made up of all the ticks received in a day (typically a "session"). The second field is disabled as no modification is necessary.
WEEKLY	Weekly charts draw bars made up of all the ticks received in a week. The modifier property is disabled as no modification is necessary.
MONTHLY	Monthly charts draw bars made up of all the ticks received in a month. The second field is disabled as no modification is necessary.
QUARTERLY	Quarter charts draw bars made up of all the ticks received in a quarter (oriented to January 1). The second field is disabled as no modification is necessary.
YEARLY	Yearly charts draw bars made up of all the ticks received in a year. The second field is disabled as no modification is necessary.

Modifier

Changing the value in the Width property changes the label of this property because this property modifies the Width property.

Width Setting	Modifier
EQUAL-TICK	The number of ticks in Equal-Tick bars.
MINUTE	The number of minutes in an intraday bars.
MULTI-DAY	The number of days in multi-day bars.
DAILY	NA
WEEKLY	NA
MONTHLY	NA
QUARTERLY	NA
YEARLY	NA

Button	Function
Restore Defaults	Restores default properties in the this tab.
OK	Applies current settings on all tabs and exits this dialog.
Cancel	Exits this dialog without applying settings.
Apply	Applies current settings and leaves this dialog in view.