R: Tidy method for map objects.

tidy.map {broom} | R Documentation

## Tidy method for map objects.

### Description

This function turns a map into a data frame.

### Usage

    ## S3 method for class 'map'
    tidy(x, ...)

### Arguments

`x` | map object
`...` | not used by this method

### Details

This code and documentation originated in ggplot2, but was called "fortify." In broom, "fortify" became "augment", which is reserved for functions that *add* columns to existing data (based on a model fit, for example) so these functions were renamed as "tidy."

### Examples

    if (require("maps") && require("ggplot2")) {
        ca <- map("county", "ca", plot = FALSE, fill = TRUE)
        head(tidy(ca))
        qplot(long, lat, data = ca, geom = "polygon", group = group)

        tx <- map("county", "texas", plot = FALSE, fill = TRUE)
        head(tidy(tx))
        qplot(long, lat, data = tx, geom = "polygon", group = group,
              colour = I("white"))
    }

[Package broom version 0.4.2 Index]