IStatistics.NormsInv

Syntax

NormsInv(Probability: Double): Double;

Parameters

Probability. Probability corresponding to normal distribution. Tolerance range: [0; 1].

Description

The NormsInv method returns the inverse value for standard normal distribution.

Comments

This distribution has the mean= 0 and the standard deviation= 1.

Example

To execute the example, add a link to the Stat system assembly.

Sub UserProc;
Var
    st: Statistics;
    d0: Double;
Begin
    st := New Statistics.Create;
    d0 := st.NormsInv(0.945);
    If st.Status <> 0 Then
        Debug.WriteLine(st.Errors);
    Else
        Debug.WriteLine("Inverse normal distribution: " + d0.ToString);
    End If;
End Sub UserProc;

After you have executed this example the console window shows the inverse value for standard normal distribution:

Module execution started

Inverse normal distribution: 1.5981931399231093

Module execution finished