| c401k | c401k | 
| cvlm | Cross-validation of a Linear Regression Model | 
| Generate.Powers | Generating Powers Series of Variables | 
| larf | Local Average Response Functions for Instrumental Variable Estimation of Treatment Effects | 
| larf.fit | Fitting the Local Average Response Function | 
| npse | Nonparametric Power Series Estimation | 
| predict.larf | Predictions Based on the Estimated LARF | 
| print.larf | Print Results of the Estimated LARF | 
| print.summary.larf | Summary of the Estimated LARF | 
| summary.larf | Summary of the Estimated LARF | 
| vcov.larf | Variance Covariance Matrix of the Parameters in the Estimated LARF |