units

0th

Percentile

Graphical Units

xinch and yinch convert the specified number of inches given as their arguments into the correct units for plotting with graphics functions. Usually, this only makes sense when normal coordinates are used, i.e., no log scale (see the log argument to par). xyinch does the same for a pair of numbers xy, simultaneously.

Keywords
dplot
Usage
xinch(x = 1, warn.log = TRUE)
yinch(y = 1, warn.log = TRUE)
xyinch(xy = 1, warn.log = TRUE)
Arguments
x, y
numeric vector
xy
numeric of length 1 or 2.
warn.log
logical; if TRUE, a warning is printed in case of active log scale.
• xinch
• yinch
• xyinch
Examples
library(graphics) all(c(xinch(), yinch()) == xyinch()) # TRUE xyinch() xyinch #- to see that is really delta{"usr"} / "pin" ## plot labels offset 0.12 inches to the right ## of plotted symbols in a plot with(mtcars, { plot(mpg, disp, pch = 19, main = "Motor Trend Cars") text(mpg + xinch(0.12), disp, row.names(mtcars), adj = 0, cex = .7, col = "blue") }) 
Documentation reproduced from package graphics, version 3.3.2, License: Part of R 3.3.2

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