Assignment

Assignment (Variable)

The Assignment Tab is used to assign a value to a Variable.

• The Value and the Default Value can be entered on the Assignment Tab.  

• The Default Value is the value that is set when additional copies of the Variable Element are added to a Drawing.

• Note: A Default Value does not need to be assigned.

• A value can be entered manually by typing in the text-box.

• The choose button is used to select the value from an existing Element.

• The expression editor is used to enter a mathematical expression.

• The Apply an Offset section is used to add or subtract a value to or from the variable.  A common usage is to add a number of points to a value such as the highest high in the last 24 bars.
• Check the Apply an Offset checkbox to enable the option.
• The first pull-down menu is used to define the action as subtraction (Sub(-)) or addition (Add(+)).
• The middle entry box is used to enter the value to be added or subtracted.  This can be a literal value, such as 15, or it can be another previously defined variable such as MyOffset. The value can also be set using the the Choose button.  Note: an Input/extern variable can be defined and selected so that the actual value can be set each time the EA is attached to a chart.
• The last pull-down menu is used to select if the value is multiplied or divided by the MQL built-in variable Point, or if neither is done.  The available options are:
• * Point  (Multiply by Point)
• / Point (Divide by Point)
• None  (Do not multiply or divide)

                       A common usage is to multiply an Integer value, such as 12, by the  MQL built-in variable Point to convert the number to a price value.

For Example, on a EURUSD chart:  12 * Point =  12 * 0.00001 = 0.00012

For more information on MQL built-in variables and functions, see the MQL Help section.