| corrmvc | Correlation from a 2d covariance matrix. |
| emp_agr | Employment in agriculture |
| graph_trend | Plot of original and smoothed time series. |
| lambda_value | Calculation of the lambda value. |
| ltable | Lambda values table. |
| plot_trend | Plot fo the time series and its smoothed version in ggplo |
| positive_definite | Checks if a squared matrix is positive definite and turn it to positive definied if necessary |
| preliminar | Preliminar smoothing |
| psigma_estimates | Preliminar estimates |
| sigma_zf | Empirical cross-covarinace. |
| smoothing_level | Smoothing value |
| trade | Annual Trade for USA and Mexico |
| trend_estimate | Trend estimation with controlled smoothing. |