truehist
Plot a Histogram
Creates a histogram on the current graphics device.
Usage
truehist(data, nbins = "Scott", h, x0 = -h/1000,
breaks, prob = TRUE, xlim = range(breaks),
ymax = max(est), col = "cyan",
xlab = deparse(substitute(data)), bty = "n", …)Arguments
- data
numeric vector of data for histogram. Missing values (
NAs) are allowed and omitted.- nbins
The suggested number of bins. Either a positive integer, or a character string naming a rule:
"Scott"or"Freedman-Diaconis"or"FD". (Case is ignored.)- h
The bin width, a strictly positive number (takes precedence over
nbins).- x0
Shift for the bins - the breaks are at
x0 + h * (…, -1, 0, 1, …)- breaks
The set of breakpoints to be used. (Usually omitted, takes precedence over
handnbins).- prob
If true (the default) plot a true histogram. The vertical axis has a relative frequency density scale, so the product of the dimensions of any panel gives the relative frequency. Hence the total area under the histogram is 1 and it is directly comparable with most other estimates of the probability density function. If false plot the counts in the bins.
- xlim
The limits for the x-axis.
- ymax
The upper limit for the y-axis.
- col
The colour for the bar fill: the default is colour 5 in the default R palette.
- xlab
label for the plot x-axis. By default, this will be the name of
data.- bty
The box type for the plot - defaults to none.
- …
Details
This plots a true histogram, a density estimate of total area 1. If
breaks is specified, those breakpoints are used. Otherwise if
h is specified, a regular grid of bins is used with width
h. If neither breaks nor h is specified,
nbins is used to select a suitable h.
Side Effects
A histogram is plotted on the current device.
References
Venables, W. N. and Ripley, B. D. (2002) Modern Applied Statistics with S. Fourth edition. Springer.