scale color for fold change values

Description

In biology, lots of data are scaled to value around 0, and people like to show them as blue-white-red scale color, where negative value are blue, 0 is white and positive value is red, and they are scaled for continuous variables.

Usage

scale_fill_fold_change()

Value

a list.

Author(s)

Tengfei Yin

Examples

p1 <- autoplot(volcano - 150)

## Scale for 'y' is already present. Adding another scale for 'y', which will
## replace the existing scale.

## Scale for 'x' is already present. Adding another scale for 'x', which will
## replace the existing scale.

p1

p1 + scale_fill_fold_change()