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WorksheetFunction.StDev_P Method

  • Article

Calculates standard deviation based on the entire population given as arguments. The standard deviation is a measure of how widely values are dispersed from the average value (the mean).

Namespace:  Microsoft.Office.Interop.Excel
Assembly:  Microsoft.Office.Interop.Excel (in Microsoft.Office.Interop.Excel.dll)

Syntax

'Declaration
Function StDev_P ( _
    Arg1 As Object, _
    Arg2 As Object, _
    Arg3 As Object, _
    Arg4 As Object, _
    Arg5 As Object, _
    Arg6 As Object, _
    Arg7 As Object, _
    Arg8 As Object, _
    Arg9 As Object, _
    Arg10 As Object, _
    Arg11 As Object, _
    Arg12 As Object, _
    Arg13 As Object, _
    Arg14 As Object, _
    Arg15 As Object, _
    Arg16 As Object, _
    Arg17 As Object, _
    Arg18 As Object, _
    Arg19 As Object, _
    Arg20 As Object, _
    Arg21 As Object, _
    Arg22 As Object, _
    Arg23 As Object, _
    Arg24 As Object, _
    Arg25 As Object, _
    Arg26 As Object, _
    Arg27 As Object, _
    Arg28 As Object, _
    Arg29 As Object, _
    Arg30 As Object _
) As Double
'Usage
Dim instance As WorksheetFunction
Dim Arg1 As Object
Dim Arg2 As Object
Dim Arg3 As Object
Dim Arg4 As Object
Dim Arg5 As Object
Dim Arg6 As Object
Dim Arg7 As Object
Dim Arg8 As Object
Dim Arg9 As Object
Dim Arg10 As Object
Dim Arg11 As Object
Dim Arg12 As Object
Dim Arg13 As Object
Dim Arg14 As Object
Dim Arg15 As Object
Dim Arg16 As Object
Dim Arg17 As Object
Dim Arg18 As Object
Dim Arg19 As Object
Dim Arg20 As Object
Dim Arg21 As Object
Dim Arg22 As Object
Dim Arg23 As Object
Dim Arg24 As Object
Dim Arg25 As Object
Dim Arg26 As Object
Dim Arg27 As Object
Dim Arg28 As Object
Dim Arg29 As Object
Dim Arg30 As Object
Dim returnValue As Double

returnValue = instance.StDev_P(Arg1, Arg2, _
    Arg3, Arg4, Arg5, Arg6, Arg7, Arg8, _
    Arg9, Arg10, Arg11, Arg12, Arg13, Arg14, _
    Arg15, Arg16, Arg17, Arg18, Arg19, _
    Arg20, Arg21, Arg22, Arg23, Arg24, _
    Arg25, Arg26, Arg27, Arg28, Arg29, _
    Arg30)

double StDev_P(
    Object Arg1,
    Object Arg2,
    Object Arg3,
    Object Arg4,
    Object Arg5,
    Object Arg6,
    Object Arg7,
    Object Arg8,
    Object Arg9,
    Object Arg10,
    Object Arg11,
    Object Arg12,
    Object Arg13,
    Object Arg14,
    Object Arg15,
    Object Arg16,
    Object Arg17,
    Object Arg18,
    Object Arg19,
    Object Arg20,
    Object Arg21,
    Object Arg22,
    Object Arg23,
    Object Arg24,
    Object Arg25,
    Object Arg26,
    Object Arg27,
    Object Arg28,
    Object Arg29,
    Object Arg30
)

Parameters

  • Arg1
    Type: System.Object

    Number1, number2, ... - 1 to 30 number arguments corresponding to a population. You can also use a single array or a reference to an array instead of arguments separated by commas (,).

Return Value

Type: System.Double

Remarks

StDev_P assumes that its arguments are the entire population. If your data represents a sample of the population, then compute the standard deviation using StDev_P.

For large sample sizes, StDev_S(Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object) and StDev_P return approximately equal values.

The standard deviation is calculated using the "biased" or "n" method.

Arguments can either be numbers or names, arrays, or references that contain numbers.

Logical values, and text representations of numbers that you type directly into the list of arguments are counted.

If an argument is an array or reference, only numbers in that array or reference are counted. Empty cells, logical values, text, or error values in the array or reference are ignored.

Arguments that are error values or text that cannot be translated into numbers cause errors.

StDev_P uses the following formula:

Figure 1: Equation for the StDev_P method

Equation for the StDev_P method

where x is the sample mean AVERAGE(number1,number2,…) and n is the sample size.

See Also

Reference

WorksheetFunction Interface

WorksheetFunction Members

Microsoft.Office.Interop.Excel Namespace