| effClust | Compute Approximate Effective Number of Clusters for Regression Coefficients |
| effClust.default | Compute Approximate Effective Number of Clusters for Regression Coefficients |
| effClust.fixest | Compute Approximate Effective Number of Clusters for Regression Coefficients |
| effClust.formula | Compute Approximate Effective Number of Clusters for Regression Coefficients |
| effClust.lm | Compute Approximate Effective Number of Clusters for Regression Coefficients |
| effClust.plm | Compute Approximate Effective Number of Clusters for Regression Coefficients |