rescale {ggbio} | R Documentation

## rescale ggplot object

### Description

Rescale a numeric vector or ggplot object, could be used for static zoom-in in ggbio.

### Usage

    ## S4 method for signature 'numeric'
    rescale(x, to = c(0, 1),
          from = range(x, na.rm = TRUE))

    ## S4 method for signature 'ggplot'
    rescale(x, xlim, ylim, sx = 1, sy = 1)
    ## S4 method for signature 'gg'
    rescale(x, xlim, ylim, sx = 1, sy = 1)

### Arguments

`x` | A numeric object or ggplot object to be rescaled.
`to` | For numeric object. it's a vector of two numeric values, specifying the range to be rescale.
`from` | Range of x.
`xlim` | For ggplot object. This specify the new limits on x-scale.
`ylim` | For ggplot object. This specify the new limits on y-scale.
`sx` | Scale fold for x-scale. Default is 1, no change.
`sy` | Scale fold for y-scale. Default is 1, no change.

### Details

When `x` is numeric value, it's just call scales::rescale, please refer to the manual page to check more details. If `x` is ggplot object, it first try to estimate current x limits and y limits of the ggplot object, then rescale based on those information.

### Value

Return the object of the same class as `x` after rescaling.

### Author(s)

Tengfei Yin

### Examples

    library(ggbio)
    head(mtcars)
    range(mtcars$mpg)
    p <- qplot(data = mtcars, x = mpg, y = disp, geom = "point")
    p.new <- rescale(p, xlim = c(20, 25))
    p.new

[Package ggbio version 1.26.1 Index]