So let's follow the below steps to create your first user-defined function: First of all, open your visual basic editor by using the shortcut key ALT + F11 or go to Developer Tab and simply click on the "Visual Basic" button. In my example, I've called it FiscalYear. Open the Visual Basic Editor and click Insert, Module. Function CalculateSquareRoot (NumberArg As Double) As Double If NumberArg < 0 Then ' Evaluate argument. Next, we declare a Range object and call it cell. How to call user-defined function in RcppParallel - R - YouTube Calling a User Defined Function (UDF).xlsm 23.5 KB Creating User Defined Functions (UDFs) Writing the Function in VBA To write the function, go to the VB Editor and begin with the word Function. Creating a User Defined Function (UDF) in Excel VBA [Ultimate Guide] 3. MyFunction = "MyFunction: " & aa. In the Insert Function dialog box, select User Defined as the category. is the code to create our user-defined Commission () function: Function Commission (Fee) If Fee <= 1000 Then Commission = Fee * 0.1 Else Commission = Fee * 0.05. 2. 'User Defined Function Function mySum (ByVal A As Integer, ByVal B As Integer) mySum = A + B End Function 'vba code to call a the user defined function Sub vba_code_to_call_a_function_b () 'Calling udf MsgBox mySum (1, 5) End Sub VBA code to Convert and Save the Excel to CSV - Instructions Intro to Excel VBA User Defined Functions - EngineerExcel To create a function you need to define the function by giving the function a name. Here. Watch an expert doing it and listen to his explanations 2. How to call user-defined function in RcppParallel - R [ Glasses to protect eyes while coding : https://amzn.to/3N1ISWI ] How to call user-defined function i. Gaurav Khanna. The most common way to define a function in VBA is by using the Function keyword, followed by a unique function name and it may or may not carry a list of parameters and a statement with End Function keyword, which indicates the end of the function. Don't do it alone from start. 5. Following is the basic syntax. All I wish to do is call the following function which is in "Microsoft Office Access Class Objects": Function GetPropertyCode () As String GetPropertyCode = PropertyCode End Function Situation: User defined functions need to be placed into a module.