plotcdf.blackbt: Blackbox Transpose Coordinate Cumulative Distribution Plot

Description Usage Arguments Value Author(s) See Also Examples

Description

plotcdf.blackbt reads an blackbt object and plots the cumulative distribution of the respondents and stimuli.

Usage

1
  plotcdf.blackbt(x, align=NULL, xlim=c(-1.2,1), ...)

Arguments

x

an blackbt output object.

align

integer, the x-axis location that stimuli names should be aligned to If set to NULL, it will attempt to guess a location.

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 empirical cumulative distribution of the respondent ideal points, along with the locations of the stimuli.

Author(s)

Keith Poole [email protected]

Howard Rosenthal [email protected]

Jeffrey Lewis [email protected]

James Lo [email protected]

Royce Carroll [email protected]

See Also

'blackbox_transpose', 'LC1980', 'plot.blackbt', 'summary.blackbt', 'LC1980_bbt'.

Examples

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
### Loads and scales the Liberal-Conservative scales from the 1980 NES.
data(LC1980)
LCdat=LC1980[,-1]	#Dump the column of self-placements

### This command conducts estimates, which we instead load using data()

#LC1980_bbt <- blackbox_transpose(LCdat,missing=c(0,8,9),dims=3,minscale=5,verbose=TRUE)
data(LC1980_bbt)

plot(LC1980_bbt)
par(ask=TRUE)
plotcdf.blackbt(LC1980_bbt)
summary(LC1980_bbt)

basicspace documentation built on April 14, 2017, 2:15 p.m.