errorbars: Error bars.

In phonTools: Tools for Phonetic and Acoustic Analyses

Description

This functions adds error bars to a plot or, optionally, plots points and added error bars.

Usage

errorbars (x, y, top, bottom = top, length = .2, add = TRUE, ...)

Arguments

x	X axis positions.
y	Y axis positions.
top	Top error bar length.
bottom	Bottom error bar length.
length	The length of the horizontal bars.
add	If TRUE, error bars are added to existing plot.
...	Additional arguments go to the internal call of arrows() which draws the error bars.

Author(s)

Santiago Barreda <[e-mail]>

References

Inspired by a similar function first seen here:

http://monkeysuncle.stanford.edu/?p=485

Examples

## add bars to existing plots 
plot (1:10, 1:10, col = 4, pch = 18)
errorbars (1:10, 1:10, .5, col = 4)

## or create a new plot
errorbars (1:10, 1:10, 2, add = FALSE)

phonTools documentation built on May 1, 2019, 6:26 p.m.