### Function Reference: `bvncdf`

statistics: p = bvncdf (x, mu, sigma)
statistics: p = bvncdf (x, [], sigma)

Bivariate normal cumulative distribution function (CDF).

`p = bvncdf (x, mu, sigma)` will compute the bivariate normal cumulative distribution function of x given a mean parameter mu and a scale parameter sigma.

- x must be an N×2 matrix with each variable as a column vector.
- mu can be either a scalar (common mean) or a two-element row vector (each element corresponds to a variable). If empty, a zero mean is assumed.
- sigma can be a scalar (common variance) or a 2×2 covariance matrix, which must be positive definite.

See also: mvncdf

Source Code: bvncdf

### Example: 1

     mu = [1, -1];
     sigma = [0.9, 0.4; 0.4, 0.3];
     [X1, X2] = meshgrid (linspace (-1, 3, 25)', linspace (-3, 1, 25)');
     x = [X1(:), X2(:)];
     p = bvncdf (x, mu, sigma);
     Z = reshape (p, 25, 25);
     surf (X1, X2, Z);
     title ("Bivariate Normal Distribution");
     ylabel "X1"
     xlabel "X2"