basicspace (version 0.03)

plotcdf.blackbt: Blackbox Transpose Coordinate Cumulative Distribution Plot

Description

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

Usage

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.

See Also

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

Examples

### Loads and scales the Liberal-Conservative scales from the 1980 NES.
data(LC1980)
LCdat=LC1980[,-1]	#Dump the column of self-placements
result <- blackbox_transpose(LCdat,missing=c(0,8,9),dims=3,minscale=5,verbose=TRUE)
plot(result)
par(ask=TRUE)
plotcdf.blackbt(result)
summary(result)