Hi,

I am using eintreg for interval regression with sample selection I would like to know the number of points used to do the numerical integration.

From my understanding, the numerical integration is over two dimensions, one dimension for the error term in the main equation and one dimension for the error term in the selection equation.

However, the manual and the dialog menu of eintreg shows the number of integration points for three and four dimensions with relative customization, but nothing is said about two dimensions.

Thanks in advance.

Simone