scale_uniform {dynutils}

Rescale data to have a certain center and max range.

Description

scale_uniform uniformily scales a given matrix such that the returned space is centered on center, and each column was scaled equally such that the range of each column is at most max_range.

Usage

scale_uniform(x, center = 0, max_range = 1)

Arguments

x

A numeric vector matrix or data frame.

center

The new center point of the data.

max_range

The maximum range of each column.

Value

The centered, scaled matrix. The numeric centering and scalings used are returned as attributes.

Examples

## Generate a matrix from a normal distribution
## with a large standard deviation, centered at c(5, 5)
x <- matrix(rnorm(200*2, sd = 10, mean = 5), ncol = 2)

## Center the dataset at c(0, 0) with a minimum of c(-.5, -.5) and a maximum of c(.5, .5)
x_scaled <- scale_uniform(x, center = 0, max_range = 1)

## Plot rescaled data
plot(x_scaled)

## Show ranges of each column
apply(x_scaled, 2, range)