456
edits
Changes
no edit summary
Default study properties include '''Input Values''', '''Style''', and '''Maximum Bars Back''' settings.
When a study is applied to a chart, the default settings are used unless the user elects to set the study properties.
To learn more about setting study properties in MultiCharts, see [[Indicator Settings]] and [[Signal Settings]]
<br>
== Setting Default Indicator Input Values ==
An Input is a constant used in '''Indicator''' calculations. Indicators can have one or more inputs, or none at all. Each input is assigned a name.
There are three types of inputs: Numeric, True/False, and String. Indicators can easily be modified by changing the input Values.
One of the main advantages of using the inputs is that basic adjustments to the indicator logic can be made by simply changing the input values, without the need to edit the indicator code.
Most, but not all, indicators use input values.
<div style="background-color: #E3FBE5;">Note: Default input values cannot be set for Signals or Functions.</div>
To set default indicator input values:
# Open the '''Properties''' window by one of the following methods:
#* Click the '''Properties''' [[File:PL_Properties.png]] icon on the toolbar; or:
#* Right-click within the script display window and then click '''Properties'''; or:
#* Select '''File''' in the main menu and click '''Properties'''.
# Select the '''General''' tab.
# In the '''Inputs''' section, in the '''Value''' column, click on the input that you want to assign a default value to, and enter the desired value.
# Select the '''Use as Default''' check box and click '''OK'''.
<br>
== Setting Default Indicator Style ==
To set properties:
# Open the '''Properties''' window by one of the following methods:
#* Click the '''Properties''' [[File:PL_Properties.png]] icon on the toolbar; or:
#* Right-click within the script display window and then click '''Properties'''; or:
#* Select '''File''' in the main menu and click '''Properties'''.
# Select the '''General''' tab.
# In the '''Style''' section, in the '''Type''' column, select the plot type from the drop-down list box.
# In the '''Color''' column select the plot color from the drop-down palette box.
# In the '''Style''' column select the plot style from the drop-down list box.
# In the '''Weight''' column select the plot weight from the drop-down list box; the weight can only be selected for the solid line style.
# Select the '''Use as Default''' check box, and click '''OK'''.
<br>
== Setting Default Signal Style ==
To set properties:
# Open the '''Properties''' window by one of the following methods:
#* Click the '''Properties''' [[File:PL_Properties.png]] icon on the toolbar; or:
#* Right-click within the script display window and then click '''Properties'''; or:
#* Select '''File''' in the main menu and click '''Properties'''.
# Select the '''Entries''' or the '''Exits''' tab, to set the style of entry or exit points, respectively.
# In each section, in the '''Color''' column, select a color for each of the components from the drop-down palette box.
# In the '''Style''' column select the component style from the drop-down list box.
# In the '''Size''' column select the component size from the drop-down list box; only the size of arrows and ticks can be set.
# Select the '''Use as Default''' check box, and click '''OK'''.
<br>
== Setting Default Maximum Bars Back ==
<br>
All studies based on past data use a certain number of bars for their calculations.
The number of bars is called '''Maximum number of bars a study will reference''', or '''Maximum Bars Back'''.
Either automatic Max Bars Back value detection (for Indicators only) or a set Max Bars Back value can be specified as the default.
<br>
=== Setting Automatic Max Bars Back Detection ===
To select automatic Maximum Bars Back detection as a default:
# Open the '''Properties''' window by one of the following methods:
#* Click the '''Properties''' [[File:PL_Properties.png]] icon on the toolbar; or:
#* Right-click within the script display window and then click '''Properties'''; or:
#* Select '''File''' in the main menu and click '''Properties'''.
# Select the ''' Properties''' tab.
# In the '''Max number of bars study will reference''' section, click '''Auto-detect'''.
# Select the '''Use as Default''' check box, and click '''OK'''.
<div style="background-color: #E3FBE5;">'''Note:''' Automatic Max Bars Back Detection is only possible for Indicators and it is impossible to set it for Signals.</div>
<br>
=== Setting Default Max Bars Back Value ===
To set a default Maximum Bars Back value:
# Open the '''Properties''' window by one of the following methods:
#* Click the '''Properties''' [[File:PL_Properties.png]] icon on the toolbar; or:
#* Right-click within the script display window and then click '''Properties'''; or:
#* Select '''File''' in the main menu and click '''Properties'''.
# Select the ''' Properties''' tab.
# In the '''Max number of bars study will reference''' section, click '''User specified''', and enter the default Max Bars Back value in to the box.
# Select the '''Use as Default''' check box, and click '''OK'''.
<div style="background-color: #E3FBE5;">'''Note:''' Maximum Bars Back value for Signals should be set in [[Strategy Properties#Setting Maximum Bars Back|'''the Strategy Properties window''']].</div>
<br>
== Setting Default Indicator Price Scale (Axis) Type ==
The default type of indicator Y-Price Scale (Axis) Type can be set from the '''Properties''' tab of the '''Properties''' window:
# Open the '''Properties''' window by one of the following methods:
#* Click the '''Properties''' [[File:PL_Properties.png]] icon on the toolbar; or:
#* Right-click within the script display window and then click '''Properties'''; or:
#* Select '''File''' in the main menu and click '''Properties'''.
# Select the ''' Properties''' tab.
# In the '''Axis Type''' section, click '''Linear''' or '''Semi-Log''' to specify linear or semi-log scale type, respectively.
# Enter the default Max Bars Back value in to the '''User specified''' box.
# Select the '''Use as Default''' check box, and click '''OK'''.
<br>
== Setting Default Indicator SubChart ==
By default, an indicator can be placed into a new SubChart, or into the same SubChart as the Symbol that the indicator is based on.
To set the default indicator SubChart:
# Open the '''Properties''' window by one of the following methods:
#* Click the '''Properties''' [[File:PL_Properties.png]] icon on the toolbar; or:
#* Right-click within the script display window and then click '''Properties'''; or:
#* Select '''File''' in the main menu and click '''Properties'''.
# Select the ''' Properties''' tab.
# Select the '''Same as Symbol''' check box for the indicator to be placed by default into the same SubChart as the Symbol, or clear the check box or the indicator to be placed into a new SubChart.
# Select the '''Use as Default''' check box, and click '''OK'''.
<br>
== Setting Indicator Update on Every Tick ==
An indicator can be recalculated every time a new tick is received, or only at the close of each bar. One or the other may be more appropriate, depending on the indicator's algorithm. Updating a large number of complex indicators on every tick will require substantial system resources
To set the default indicator update rate:
# Open the '''Properties''' window by one of the following methods:
#* Click the '''Properties''' [[File:PL_Properties.png]] icon on the toolbar; or:
#* Right-click within the script display window and then click '''Properties'''; or:
#* Select '''File''' in the main menu and click '''Properties'''.
# Select the ''' Properties''' tab.
# Clear the '''Update on every tick''' check box to recalculate the indicator on bar close only, or select the check box to recalculate the indicator every time a new tick is received.
# Select the '''Use as Default''' box, and click '''OK'''.
<br>
[[Category:PowerLanguage Editor]]