shist: smooth histogram

In rafalab/rafalib: Convenience Functions for Routine Data Exploration

Description

a smooth histogram with unit indicator (we're simply scaling the kernel density estimate). The advantage of this plot is its interpretability since the height of the curve represents the frequency of a interval of size unit around the point in question. Another advantage is that if z is a matrix, curves are plotted together.

Usage

shist(z, unit, bw = "nrd0", n, from, to, plotHist = FALSE, add = FALSE,
  xlab, ylab = "Frequency", xlim, ylim, main, ...)

Arguments

z	the data
unit	the unit which determines the y axis scaling and is drawn
bw	arguments to density
n	arguments to density
from	arguments to density
to	arguments to density
plotHist	a logical: should an actual histogram be drawn under curve?
add	a logical: add should the curve be added to existing plot?
xlab	x-axis title, defaults to no title
ylab	y-axis title, defaults to no title
xlim	range of the x-axis
ylim	range of the y-axis
main	an overall title for the plot: see title.
...	arguments to lines

Examples

set.seed(1)
x = rnorm(50)
par(mfrow=c(2,1))
hist(x, breaks=-5:5)
shist(x, unit=1, xlim=c(-5,5))

rafalab/rafalib documentation built on April 17, 2021, 6:47 p.m.