returns the area under the normal gaussian probability density function , integrated from minus infinity to x. x - 1 | | 2 normal x = --------- | exp - t-mean / 2v dt sqrt 2piv | | - - inf . where v = variance . computation is via the functions errorfunction . concode_field_sep Normal UNIT_NORMAL concode_field_sep double negativeBinomial concode_elem_sep double poisson concode_elem_sep double beta concode_elem_sep double gamma
double function ( double arg0 , double arg1 , double arg2 ) { return normal ( ( arg2 - arg0 ) / Math . sqrt ( arg1 ) ) ; }