Usage
## S3 method for class 'grouped.data':
hist(x, freq = NULL, probability = !freq,
density = NULL, angle = 45, col = NULL, border = NULL,
main = paste("Histogram of" , xname),
xlim = range(cj), ylim = NULL, xlab = xname, ylab,
axes = TRUE, plot = TRUE, labels = FALSE, ...)Arguments
x
an object of class "grouped.data"; only the first
column of frequencies is used.
freq
logical; if TRUE, the histogram graphic is a
representation of frequencies, the counts component of
the result; if FALSE, probability densities, component
density, are plotted (so that the hi
probability
an alias for !freq, for S compatibility.
density
the density of shading lines, in lines per inch.
The default value of NULL means that no shading lines
are drawn. Non-positive values of density also inhibit the
drawing of shading lines.
angle
the slope of shading lines, given as an angle in
degrees (counter-clockwise).
col
a colour to be used to fill the bars.
The default of NULL yields unfilled bars.
border
the color of the border around the bars. The default
is to use the standard foreground color.
main, xlab, ylab
these arguments to title have useful
defaults here.
xlim, ylim
the range of x and y values with sensible defaults.
Note that xlim is not used to define the histogram
(breaks), but only for plotting (when plot = TRUE).
axes
logical. If TRUE (default), axes are draw if the
plot is drawn.
plot
logical. If TRUE (default), a histogram is
plotted, otherwise a list of breaks and counts is returned.
labels
logical or character. Additionally draw labels on top
of bars, if not FALSE; see plot.histogram.