In that maxlik example, return code 34 means that the datafile could not be found. It also prints a message to the error output window that states which file could not be opened.

To run the example files that load a dataset you need to change your working directory to the examples directory. The default location of this folder on windows is C:\gauss12\examples. You can change your working directory by either:

1. Entering:

>> chdir examples

from the command line.

2. Using the working directory toolbar widget at the top center of the main GAUSS window. You can press the button next to the dropdown menu to browse to any location on your computer.

This should be the only change you need to make to run maxlik1.e.

To your second question, you can load a GAUSS dataset with the ‘loadd’ command. In this example, the file that you want to load is called tobit.dat. You can load it into a matrix like this:

x = loadd("tobit.dat");

or if it is in a different directory, you can use the full path on the file name like this:

x = loadd("C:\\gauss12\\tobit.dat");