| CorrMat | The Function for Constructing the Correlation Matrix in 'GPM' Package |
| Draw | The Plotting Function of 'GPM' Package |
| Fit | The Fitting Function of 'GPM' Package |
| NLogL | The Function for calculating the Negative Log-Likelehood in 'GPM' Package |
| Predict | The Prediction Function of 'GPM' Package |