text_plot: Make a plot of text labels

In paulemms/datamining: Data mining

Make a plot of text labels

Description

Like text except it creates a new plot with limits chosen to make all labels visible.

Usage

text_plot(object, ...)

Arguments

x, y	numeric vectors, same length
data	a data frame with at least two columns
formula	a formula specifying a response and predictor variable
labels	character vector, same length as x
srt	rotation angle as in text.
adj	text justification as in text.

Details

The main job of text.plot is finding the right plot limits so that all labels are visible. It does this by computing the bounding box of each label (taking into account text rotation and justification) and solving a system of inequalities which ensure that each label fits entirely into the plot window.

Author(s)

Tom Minka

Examples

data(state)
x <- data.frame(state.x77)
text_plot(x$Frost, x$HS.Grad, rownames(x))

# same thing, using text.plot.formula
text_plot(HS.Grad ~ Frost, x)

# notice how the limits change
text_plot(HS.Grad ~ Frost, x, srt=45)
text_plot(HS.Grad ~ Frost, x, srt=90)

paulemms/datamining documentation built on March 1, 2023, 4:01 p.m.