Rating.getSigList: Get a list of special interest groups according to rating...
In umatter/pvsR: Interact with the Project Vote Smart API for Scientific Research

Description Usage Arguments Value Author(s) References Examples

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.

1	Rating.getSigList(stateId="NA", categoryId)

`stateId`	(optional) a character string or list of character strings with the state ID(s) (default: "NA", for national) (see references for details)
`categoryId`	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:
sigs.sig*.sigId,
sigs.sig*.parentId,
sigs.sig*.name.

Ulrich Matter <ulrich.matter-at-unibas.ch>

http://api.votesmart.org/docs/Rating.html
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

# First, make sure your personal PVS API key is saved as an option
# (options("pvs.key" = "yourkey")) or 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