plot.aldmck_negative {basicspace}

R Documentation

Aldrich-McKelvey Negative Coordinate Distribution Plot

Description

plot.aldmck_negative reads an aldmck object and plots the probability distribution of the respondents and stimuli with negative weights.

Usage

## S3 method for class 'aldmck_negative'
plot(x, xlim=c(-2,2), ...)

Arguments

x	an aldmck output object.
xlim	vector of length 2, fed to the plot function as the xlim argument, which sets the minimum and maximum range of the x-axis.
...	other arguments to plot.

Value

A plot of the probability distribution of the respondent ideal points, along with the locations of the stimuli. If no negative weights exist, either because respondent self-placements are not specified, or because all weights are positive, a plot indicating this in text is given.

Author(s)

Keith Poole ktpoole@uga.edu

Howard Rosenthal hr31@nyu.edu

Jeffrey Lewis jblewis@ucla.edu

James Lo lojames@usc.edu

Royce Carroll rcarroll@rice.edu

See Also

'aldmck', 'LC1980', 'summary.aldmck', 'plot.cdf', 'plot.aldmck'

Examples

### Loads and scales the Liberal-Conservative scales from the 1980 NES.
data(LC1980)
result <- aldmck(data=LC1980, polarity=2, respondent=1, missing=c(0,8,9),verbose=TRUE)
summary(result)
plot.aldmck_negative(result,xlim=c(-1.5,1.5))

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