error.crosses {psych}R Documentation

Plot x and y error bars

Description

Given two vectors of data, plot the means and show standard errors in both X and Y directions.

Usage

error.crosses(x, y, labels = NULL, pos = NULL, arrow.len = 0.2, ...)

Arguments

x A vector of summary statistics (from Describe)
y A second vector of summary statistics (also from Describe)
labels name the pair
pos Labels are located where with respect to the mean?
arrow.len Arrow length
... Other parameters for plot

Details

For an example of two way error bars describing the effects of mood manipulations upon positive and negative affect, see http://personality-project.org/revelle/publications/happy-sad-appendix/FIG.A-6.pdf)

Author(s)

William Revelle
revelle@northwestern.edu

Examples


#desc <- describe(attitude)
#x <- desc[1,]
#y <- desc[2,]
#plot(x$mean,y$mean)   #in graphics window
#error.crosses(x,y)    #in graphics window



[Package psych version 1.0-33 Index]