imageInteraction: Plot an two-way quantitative interaction in an image plot

In vagnerfonseca/fifer: A Biostatisticians Toolbox for Various Activities, Including Plotting, Data Cleanup, and Data Analysis

Description

Plot an two-way quantitative interaction in an image plot

Usage

imageInteraction(data, x, y, z, plot = TRUE, legend = TRUE, ...)

Arguments

data	a data matrix with columns indicating the values of x, y, and z
x	the name of the x variable (a string)
y	the name of the y variable (a string)
z	the name of the z variable (a string)
plot	Should an image be plotted?
legend	add a legend to the plot?
...	other arguments passed to anchored.gradient.

Details

The image function is quite useful for displaying two-way quantitative interactions (variable X on the X axis, variable Y on the Y axis, and z represented as a color). However, this function requires a matrix where the cells (r_ij) represent the Z value in the ith value of x and jth value of y. Getting it into matrix form can be annoying if it natively comes in long-column format. This function takes a data matrix, conditions as well as z in the columns, and returns an image matrix.

Value

the x range, y range, and image matrix

Author(s)

Dustin Fife

See Also

image

Examples

## do this later

vagnerfonseca/fifer documentation built on May 3, 2019, 4:06 p.m.