manifesto | R Documentation |
A word frequency matrix containing word frequencies from 25 German party manifestos between 1990-2005. Obtained from Slapin and Proksch AJPS paper, also used in Lo, Slapin and Proksch.
data(manifesto)
list, containing the following elements:
Term-document matrix, formatted for input to ordIRT()
.
Start values, formatted for input to ordIRT()
.
Priors, formatted for input to ordIRT()
.
Jonathan Slapin and Sven-Oliver Proksch. 2009. “A Scaling Model for Estimating Time-Series Party Positions from Texts.” American Journal of Political Science 52(3), 705-722
James Lo, Jonathan Slapin, and Sven-Oliver Proksch. 2016. “Ideological Clarify in Multiparty Competition: A New Measure and Test Using Election Manifestos.” British Journal of Political Science, 1-20
Kosuke Imai, James Lo, and Jonathan Olmsted. (2016). “Fast Estimation of Ideal Points with Massive Data.” American Political Science Review, Vol. 110, No. 4 (December), pp. 631-656.
'poisIRT'.
## Not run:
## Load German Manifesto data
data(manifesto)
## Estimate variational Wordfish model
lout <- poisIRT(.rc = manifesto$data.manif,
i = 0:(ncol(manifesto$data.manif)-1),
NI=ncol(manifesto$data.manif),
.starts = manifesto$starts.manif,
.priors = manifesto$priors.manif,
.control = {list(
threads = 1,
verbose = TRUE,
thresh = 1e-6,
maxit=1000
)})
## Positional Estimates for Parties
lout$means$x
## End(Not run)
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.