| AtA | Computing A'A |
| cluster_matrix | Cluster-robust Standard Error Estimation |
| collinearity_check | Checking for Perfect Multicollinearity |
| compute_fes | Fixed Effects Computation |
| countries | Country ISO Codes |
| eigenMapMatMult | Faster Matrix Multiplication |
| eigenMatMult | Faster Matrix Multiplication |
| fastolsCpp | Faster Least Squares Estimation |
| fastridge | Finding Ridge Regression Solutions |
| fastridgeCpp | Faster Ridge Regression |
| faststddev | Faster Standard Deviation |
| fastwmean | Faster Weighted Mean |
| genfes | Generating a List of Fixed Effects |
| genmodel | Generating Model Structure |
| hdfeppml | PPML Estimation with HDFE |
| hdfeppml_int | PPML Estimation with HDFE |
| iceberg | Iceberg Lasso Implementation (in development) |
| manyouter | Many Outer Products |
| mlfitppml | General Penalized PPML Estimation |
| mlfitppml_int | General Penalized PPML Estimation |
| penhdfeppml | One-Shot Penalized PPML Estimation with HDFE |
| penhdfeppml_cluster | Plugin Lasso Estimation |
| penhdfeppml_cluster_int | Plugin Lasso Estimation |
| penhdfeppml_int | One-Shot Penalized PPML Estimation with HDFE |
| plugin_lasso_int | Iceberg Lasso Implementation (in development) |
| select_fes | Filtering fixed effect lists |
| standardize_wt | Weighted Standardization |
| trade | International trade agreements data set |
| xeex | XeeX Matrix Computation |
| xvalidate | Implementing Cross Validation |