errorbars: Error bars.
In phonTools: Tools for Phonetic and Acoustic Analyses

errorbars

R Documentation

Error bars.

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 <sbarreda@ucdavis.edu>

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 Nov. 21, 2023, 1:07 a.m.