/
coord_fixed.Rd
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/
coord_fixed.Rd
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\name{coord_fixed}
\title{Cartesian coordinates with fixed relationship between x and y scales.}
\usage{coord_fixed(ratio=1)}
\description{
Cartesian coordinates with fixed relationship between x
and y scales.
}
\details{
A fixed scale coordinate system forces a specified ratio
between the physical representation of data units on the
axes. The ratio represents the number of units on the
y-axis equivalent to one unit on the x-axis. The default,
ratio = 1, ensures that one unit on the x-axis is the
same length as one unit on the y-axis. Ratios higher than
one make units on the y axis longer than units on the
x-axis, and vice versa. This is similar to
\code{\link[MASS]{eqscplot}}, but it works for all types
of graphics.
}
\alias{coord_fixed}
\alias{coord_equal}
\examples{# ensures that the ranges of axes are equal to the specified ratio by
# adjusting the plot aspect ratio
qplot(mpg, wt, data = mtcars) + coord_equal(ratio = 1)
qplot(mpg, wt, data = mtcars) + coord_equal(ratio = 5)
qplot(mpg, wt, data = mtcars) + coord_equal(ratio = 1/5)
# Resize the plot to see that the specified aspect ratio is mantained}