Reproducible Data Retrieval from the Roper Center Data Archive
c(
person("Frederick", "Solt", email = "frederick-solt@uiowa.edu", role = c("aut", "cre")))
Reproducible, programmatic retrieval of datasets from the
Roper Center data archive.  The Roper Center for Public Opinion
Research <https://ropercenter.cornell.edu> maintains the largest
archive of public opinion data in existence, but researchers using
these datasets are caught in a bind.  The Center's terms and conditions
bar redistribution of downloaded datasets, but to ensure that one's
work can be reproduced, assessed, and built upon by others, one must
provide access to the raw data one employed.  The `ropercenter`
package cuts this knot by providing registered users with programmatic,
reproducible access to Roper Center datasets from within R.
rvest, httr, xml2, dplyr, stringr, haven, foreign

rvest, httr, xml2, dplyr, stringr, haven, foreign, tibble,
tidyr, readr

c(
person("Frederick", "Solt", email = "frederick-solt@uiowa.edu", role = c("aut", "cre", "cph")),
person("Jennifer", "Lin", email = "jenniferlin2025@u.northwestern.edu", role = c("ctb")),
person("Paul", "Gronke", email = "gronkep@reed.edu", role = c("ctb")))
RSelenium, dplyr, foreign, haven, magrittr, readr, rio,
stringr, tibble, tidyr
Frederick Solt [aut, cre, cph],
Jennifer Lin [ctb],
Paul Gronke [ctb]

Low-Level Support for Provenance Capture Between in-Memory R
Objects
A suite of classes and methods which provide low-level support for modeling provenance between in-memory R objects. This is an infrastructure package and is not intended to be used directly by end-users.

General Purpose Optimization in R using C++
Perform general purpose optimizations in R using C++. A unified
wrapper interface is provided to call C functions of the five optimization
algorithms ('Nelder-Mead', 'BFGS', 'CG', 'L-BFGS-B' and 'SANN') underlying
optim().

Perform general purpose optimization in R using C++. A unified
wrapper interface is provided to call C functions of the five optimization
algorithms ('Nelder-Mead', 'BFGS', 'CG', 'L-BFGS-B' and 'SANN') underlying
optim().