ssqrt_trans {ggallin}

Various scale transforms.

Description

Various scale transformations.

Usage

ssqrt_trans

pseudolog10_trans

Format

An object of class trans of length 7.

Details

The available transforms:

• ssqrt_trans a signed square root transform appropriate for negative or positive numbers.

• pseudolog10_trans an asinh transformation, which is like a logarithm, but appropriate for negative or positive numbers. This transformation was taken from the Win Vector blog, http://www.win-vector.com/blog/2012/03/modeling-trick-the-signed-pseudo-logarithm/.

Value

A scale transformation object.

Author(s)

Steven E. Pav [e-mail]

See Also

trans_new.

http://www.win-vector.com/blog/2012/03/modeling-trick-the-signed-pseudo-logarithm/

Examples

set.seed(1234)
ggplot(data.frame(x=rnorm(100),y=runif(100)),aes(x=x,y=y)) + 
  geom_point() + 
  scale_x_continuous(trans=ssqrt_trans)

set.seed(1234)
ggplot(data.frame(x=rnorm(100),y=runif(100)),aes(x=x,y=y)) + 
  geom_point() + 
  scale_x_continuous(trans=pseudolog10_trans)