Spread WinForms 15
GrapeCity.Spreadsheet Assembly / GrapeCity.Spreadsheet Namespace / WorksheetFunction Class / Trend Method
Known_y's - the set of y-values that you already know in the relationship y = mx + b.
Known_x's - an optional set of x-values that you may already know in the relationship y = mx + b.
New_x's - new x-values for which you want Trend to return corresponding y-values.
Const - a logical value specifying whether to force the constant b to equal 0.
The context worksheet to calculate.
The context row to calculate.
The context column to calculate.


In This Topic
Trend Method
In This Topic
Gets values along a linear trend. Fits a straight line (using the method of least squares) to the arrays known_y's and known_x's. Gets the y-values along that line for the array of new_x's that you specify.
Syntax
'Declaration
 
Public Function Trend( _
   ByVal knowY As Object, _
   Optional ByVal knowX As Object, _
   Optional ByVal newX As Object, _
   Optional ByVal constant As Object, _
   Optional ByVal worksheet As IWorksheet, _
   Optional ByVal contextRow As Integer, _
   Optional ByVal contextColumn As Integer _
) As Object
 
'Usage
 
Dim instance As WorksheetFunction
Dim knowY As Object
Dim knowX As Object
Dim newX As Object
Dim constant As Object
Dim worksheet As IWorksheet
Dim contextRow As Integer
Dim contextColumn As Integer
Dim value As Object
 
value = instance.Trend(knowY, knowX, newX, constant, worksheet, contextRow, contextColumn)

Parameters

knowY
Known_y's - the set of y-values that you already know in the relationship y = mx + b.
knowX
Known_x's - an optional set of x-values that you may already know in the relationship y = mx + b.
newX
New_x's - new x-values for which you want Trend to return corresponding y-values.
constant
Const - a logical value specifying whether to force the constant b to equal 0.
worksheet
The context worksheet to calculate.
contextRow
The context row to calculate.
contextColumn
The context column to calculate.
See Also