amt_load(MODEL, DATA);
amt_load(model, data) loads the auxiliary data from the file data. The data will loaded from the directory model located in the local auxdata directory given by amt_auxdatapath.
If the file is not in the local auxdata directory, it will be downloaded from the web address given by amt_auxdataurl.
amt_load(model, data, variable) loads just a particular variable from the file.