DataLab is a compact statistics package aiming at exploratory data analysis. Please visit the DataLab Web site for more information....


Declaration: tDistriIntegral (t: double; df: integer): double;
The function tDistriIntegral returns the integral of the t-distribution between minus infinity and the value of the parameter t. The parameter df specifies the number of degrees of freedom. The returned value may vary between 0.0 and 1.0.