best_lambda | R Documentation |

This is a function taking a formula, a dataframe and an optional list of contrast for factor variables, and taking into account colinear (or nearly colinear) regression variables and returning coefficients.

```
best_lambda(
formula,
df,
contrasts = NULL,
lambdas = seq(-2, 2, by = 0.01),
nfold = 10
)
```

`formula` |
an object of class "formula": describing the model to be fitted. |

`df` |
a dataframe that containing all the variables in the model. |

`contrasts` |
an optional list of contrasts for factor variables. |

`lambdas` |
a sequence of lambdas to be selected from, default is seq(-1, 1, by = 0.01) |

`nfold` |
number of folds for the cross validation |

```
data(iris)
form <- Sepal.Length ~ Sepal.Width
best_lambda(formula = form,df = iris)
```

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