R: Exemplar observation

exemplar {pdp} | R Documentation

## Exemplar observation

### Description

Construct a single "exemplar" record from a data frame. For now, all numeric columns (including `"Date"` objects) are replaced with their corresponding median value and non-numeric columns are replaced with their most frequent value.

### Usage

    exemplar(object)

    ## S3 method for class 'data.frame'
    exemplar(object)

    ## S3 method for class 'matrix'
    exemplar(object)

    ## S3 method for class 'dgCMatrix'
    exemplar(object)

### Arguments

`object` | A data frame, matrix, or `dgCMatrix` (the latter two are supported by `xgboost`).

### Value

A data frame with the same number of columns as `object` and a single row.

### Examples

    set.seed(1554)  # for reproducibility
    train <- data.frame(
      x = rnorm(100),
      y = sample(letters[1L:3L], size = 100, replace = TRUE,
                 prob = c(0.1, 0.1, 0.8))
    )
    exemplar(train)

[Package pdp version 0.8.0 Index]