Calling Macros from a Macro

Hi all,

I am having some difficulty "calling a macro from a macro"

 Sub Macroname(ws As Worksheet, _
                cht_sourcedata As Range, _
                cht_Title As String)
Dim cht As Chart
Dim i As Long
Dim chtHeight As Double

Set cht = ThisWorkbook.Charts.Add

Above is the start of the macro I would like to call.

I assume that in order to call this macro I need to state the worksheet, range, and Title.

How would it be best to do this in VBA?

Thanks very much!!