nomprob
(Package: wnominate) :
NOMINATE Probability Matrix Generator
nomprob takes estimates from the W-NOMINATE model and returns a matrix of yea choice probabilities. It is used to generate a test rollcall object using generateTestData.
● Data Source:
CranContrib
● Keywords: multivariate
● Alias: nomprob
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plot.coords
(Package: wnominate) :
W-NOMINATE Coordinate Plot
plot.coords reads a W-NOMINATE object in 2 user-specified dimensions and plots the coordinates of each member, applying separate colors and shapes to each party by default. A unit circle is included to emphasize the constraints on the W-NOMINATE coordinates, and options to select non-party attributes of legislators are included. For a 1D W-WNOMINATE object, W-NOMINATE scores are plotted against their ranks.
● Data Source:
CranContrib
● Keywords: multivariate
● Alias: plot.coords
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summary.nomObject reads a W-NOMINATE object and prints a summary.
● Data Source:
CranContrib
● Keywords: multivariate
● Alias: summary.nomObject
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generateTestData is the function that generates a rollcall object used to test wnominate. The description of the result below is copied from the documentation of package pscl, written by Simon Jackman.
● Data Source:
CranContrib
● Keywords: multivariate
● Alias: generateTestData
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plot.cutlines reads a W-NOMINATE object and plots the cutting line of a specified proportion of all votes along two user-specified dimensions. The default is to plot 50 cutting lines. This is also known as a Coombs mesh. A unit circle is included to emphasize the constraints on the W-NOMINATE coordinates. Only cutlines that are constrained to have midpoints lying in a unit circle are included. plot.cutlines does not work for 1D W-NOMINATE objects.
● Data Source:
CranContrib
● Keywords: multivariate
● Alias: plot.cutlines
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plot.scree is the function that takes a W-NOMINATE object and plots a Scree plot. Scree plots show the dimensionality of the voting by showing the sizes of the eigenvalues.
● Data Source:
CranContrib
● Keywords: multivariate
● Alias: plot.scree
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plot.nomObject reads a W-NOMINATE object in two user-specified dimensions and plots the coordinates, cutting lines, a Coombs mesh, and a Skree plot. For 1-dimensional W-NOMINATE objects, it plots the coordinates against the ranks along with a Skree plot.
● Data Source:
CranContrib
● Keywords: multivariate
● Alias: plot.nomObject
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qnprob
(Package: wnominate) :
Qudaratic Normal Probability Matrix Generator
qnprob takes estimates from the Quadratic Normal model and returns a matrix of yeah choice probabilities. It is used to generate a test rollcall object using generateTestData. The function is set up to take identical arguments to nomprob, which explains why many of the arguments do not do anything.
● Data Source:
CranContrib
● Keywords: multivariate
● Alias: qnprob
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wnominate
(Package: wnominate) :
W-NOMINATE Roll Call Scaling
wnominate is the function that takes a rollcall object and estimates Poole and Rosenthal W-NOMINATE scores with them.
● Data Source:
CranContrib
● Keywords: multivariate
● Alias: wnominate
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plot.angles
(Package: wnominate) :
W-NOMINATE Cutting Line Angles Plot
plot.angles reads a W-NOMINATE object and plots a histogram of the angles of the cutlines for two dimensions. plot.angles does not work for one-dimensional W-NOMINATE objects.
● Data Source:
CranContrib
● Keywords: multivariate
● Alias: plot.angles
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