user_span_cutpointr {cutpointr} | R Documentation |

## Calculate bandwidth for LOESS smoothing of metric functions by rule of thumb

### Description

This function implements a rule of thumb for selecting the bandwidth when
smoothing a function of metric values per cutpoint value, particularly
in `maximize_loess_metric`

and `minimize_loess_metric`

.

### Usage

```
user_span_cutpointr(data, x)
```

### Arguments

`data` |
A data frame |

`x` |
The predictor variable |

### Details

The function used for calculating the bandwidth is 0.1 * xsd / sqrt(xn), where xsd is the standard deviation of the unique values of the predictor variable (i.e. all cutpoints) and xn is the number of unique predictor values.

[Package

*cutpointr*version 1.1.2 Index]