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Draw a Rectangle
Syntax
rect(xleft, ybottom, xright, ytop, ...)
Arguments
xleft
|
a vector (or scalar) of left x positions.
|
ybottom
|
a vector (or scalar) of bottom y positions.
|
xright
|
a vector (or scalar) of right x positions.
|
ytop
|
a vector (or scalar) of top y positions.
|
...
|
graphical parameters passed to set.pars.
|
Description
rect draws a rectangle (or sequence of rectangles) with the
given coordinates. It is a primitive funciton used in hist.
The value supplied, ie. xleft, ..., are relative to the current
plotting region. If the x-axis goes from 100 to 200 then xleft
must be larger than 100 and xright must be less than 200.
Examples
<![CDATA[# set up the plot region but don't plot
plot(c(100, 200), c(300, 400), type="n")
# draw a rectangle with bottom left (150,320)
# and top right (177,380)
rect(150,320,177,380)
]]>