This function is a wrapper for the Rating.getSigList() method of the PVS API Rating class which dumps special interest groups (SIGs) according to category and state. The function sends a request with this method to the PVS API for all category and state IDs given as a function input, extracts the XML values from the returned XML file(s) and returns them arranged in one data frame.
(optional) a character string or list of character strings with the state ID(s) (default: "NA", for national) (see references for details)
a character string or list of character strings with the category ID(s) (see references for details)
A data frame with a row for each special interest group and columns with the following variables describing the special interest group:
Ulrich Matter <ulrich.matter-at-unibas.ch>
Use State.getStateIDs() to get a list of state IDs.
Use Rating.getCategories() or Rating.getCandidateRating() to get category IDs.
See also: Matter U, Stutzer A (2015) pvsR: An Open Source Interface to Big Data on the American Political Sphere. PLoS ONE 10(7): e0130501. doi: 10.1371/journal.pone.0130501
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# First, make sure your personal PVS API key is saved as character string in the pvs.key variable: ## Not run: pvs.key <- "yourkey" # get a list of special interest groups for certain categories and all states ## Not run: sig <- Rating.getSigList(categoryId=list(2,4,5,7)) ## Not run: sig
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