| plot.histogram {graphics} | R Documentation |
These are methods for objects of class "histogram", typically
produced by hist.
## S3 method for class 'histogram':
plot(x, freq = equidist, density = NULL, angle = 45,
col = NULL, border = par("fg"), lty = NULL,
main = paste("Histogram of", paste(x$xname, collapse="\n")),
sub = NULL, xlab = x$xname, ylab,
xlim = range(x$breaks), ylim = NULL,
axes = TRUE, labels = FALSE, add = FALSE, ...)
## S3 method for class 'histogram':
lines(x, ...)
x |
a histogram object, or a list with components
density, mid, etc, see hist for
information about the components of x. |
freq |
logical; if TRUE, the
histogram graphic is to present a representation of frequencies, i.e,
x$counts; if FALSE, relative frequencies
(“probabilities”), i.e., x$density, are plotted. The
default is true for equidistant breaks and false otherwise. |
col |
a colour to be used to fill the bars. The default of
NULL yields unfilled bars. |
border |
the color of the border around the bars. |
angle, density |
select shading of bars by lines:
see rect. |
lty |
the line type used for the bars, see also lines. |
main, sub, xlab, ylab |
these arguments to title have useful
defaults here. |
xlim, ylim |
the range of x and y values with sensible defaults. |
axes |
logical, indicating if axes should be drawn. |
labels |
logical or character. Additionally draw labels on top of bars,
if not FALSE; if TRUE, draw the counts or rounded
densities; if labels is a character, draw itself. |
add |
logical. If TRUE, only the bars are added to the
current plot. This is what lines.histogram(*) does. |
... |
further graphical parameters to title and axis. |
lines.histogram(*) is the same as
plot.histogram(*, add = TRUE).
(wwt <- hist(women$weight, nc= 7, plot = FALSE))
plot(wwt, labels = TRUE) # default main & xlab using wwt$xname
plot(wwt, border = "dark blue", col = "light blue",
main = "Histogram of 15 women's weights", xlab = "weight [pounds]")
## Fake "lines" example, using non-default labels:
w2 <- wwt; w2$counts <- w2$counts - 1
lines(w2, col = "Midnight Blue", labels = ifelse(w2$counts, "> 1", "1"))