1.5.7 * Add drop = FALSE to some matrices in the zeroinfl and hurdle functions.
* Specify that the optim convergence must equal 0 (which means the model converged) in the zeroinfl function.
1.5.5 * changed "class(obj) == X" to "inherits(obj, X)" or is.data.frame for compatibility with R 4.0
1.5.4 * added lm.wfit to NAMESPACE
* updated class testing in predprob.ideal and checkVotes for
compatibility with R 4.0
* spelling fixes in help pages
* updated URL for dtl files in readKH
1.5.3 * fixed bug in pR2 when missing data is present
* added error handling when inverting Hessians in hurdle models
and zero-inflated count models
* improved starting values in zero-inflated count models
1.5.2 * fixed bugs in calls to C routines in ideal.R
1.5.1 * AustralianElections includes 2010,2013,2016
* presidentialElections includes 2016 and 2012 Alabama result
* Manual updated to reflect changes
1.5.0 * improved truncated normal sampling (15-20% faster)
* added use.voter option to ideal, implementing approach from
Stephen Jessee's 2016 AJPS article. See ?ideal for details.
* updated author contact information
* fixed voteview URLs to reflect new site structure
* fixed other broken URLs
* CRAN compliance
1.4.9 * fixed bug in AIC correct in Vuong test
1.4.8 * package dependencies handled better
* slight tweeks to ideal help
* CRAN compliance
* addressing memory leak issues revealed by valgrind in ideal's
mallocs
1.4.7 * AIC and BIC in Vuong, better description and printing
1.4.6 * compliance with CRAN recss/reqs, vignettes sub-dir
* better Imports/Depends/Suggests etc
* dropped redundant "require" in examples etc
* fixed long-standing buglet in Vuong test, AIC type df adjustment
to test statistic
* use format.pval for pvalues printing in Vuong output to screen
1.4.5 * better compliance with CRAN reccs/reqs, R 3.0.0 etc
* drop leading zero in version number
* compress PDFs from vignettes
* lazy-loading, so um, lazy-load in readKH.r
1.04.4 * presidentialElections includes 2012
1.04.3 * bug in postProcess, not evaluating args in call of ideal object
1.04.2 * minor typo in dropRollCall.Rd
1.04.1 * fixed bug in non-English locales for hurdle/zeroinfl formula
processing if second part of formula contained a period.
1.04 * fixed quite serious bug with storing item parameters
* COPYING file deprecated (?), deleted from repos with r174
1.03.12 * minor bug in tracex with d>1
* deprecate showAll plotting option in tracex, change to "multi"
(default=FALSE)
1.03.11 * small change to documentation for ca2006 (thanks Arthur Aguirre)
1.03.10 * pythag deprecated in Rmath.h, use system hypot instead (3/13/2011)
* warnings about memory etc only come on with verbose=TRUE (req by
Stephen Jessee)
1.03.9 * ideal: small change in partyLoyalty (thanks to Chris Hanretty)
* ideal: reformat output of ideal to be 3-d arrays
* ideal: change default prior precision for item parameters to .04
(used to be .01)
* added UKHouseOfCommons data; Example 6.9 in BASS
1.03.8 * added an optional "at" argument to predprob() methods for
count data so that the counts at which the probabilities are
evaluated can be specified
1.03.7 * small bug in constrain.item (reported by Paul Johnson)
* change normalization option in ideal to generate posterior means
with mean 0, sd 1
* do normalization over all dimensions
* typos in documentation for pseudo-R2 (thanks to Henrik P?rn)
1.03.6 * made gam dependency explicit
* change linear.hypothesis to linearHypothesis
1.03.5 * added AustralianElectionPolling
* tidy up Rd files for data sets (itemize -> describe)
* use dQuote in Rd files (or not)
* update AustralianElections with 2007 results
1.03.4 * added iraqVote
* updated presidentialElections with 2008 results
* added nj07
* added vote92
1.03.3 * improved offset handling in hurdle()/zeroinfl(): offsets in zero
model are now allowed and can be different from count model.
See ?hurdle/?zeroinfl for details.
* included error message for negative binomial zero hurdle model
with only an intercept as such models are not identified
* fixed bug in predict() method for "hurdle" object when a Poisson
zero hurdle model is employed
* fixed bug in formula processing of hurdle()/zeroinfl(): formulas
of type "y ~ . | . - x1 - x2" were not processed correctly.
* for weighted hurdle/zeroinfl models the number of observations
is now the effective number, i.e., with weights > 0
1.03.2 * fixing .Last.lib problems
* turned off MDA option in ideal by default, seems broken, needs
work
1.03a * make startvalues in ideal accept names other than xstart
(anything unique that starts with x will do)
1.03 * bug in ideal start value argument processing thanks to Bjorn Hoyland
1.02 * added politicalInformation data
* added MDA option to ideal
1.01 * added EfronMorris data
* added RockTheVote data
1.00 * updated CITATION and docs to version 1.00 accompanying JSS paper
0.97 * minor changes to print and summary methods for rollcall and ideal objects
* bugs in ideal (discovered via odd combination of store.item and
file)
* dropRollCallObject makes prettier output, works a little more
sanely
* s109 is now updated to its final status, example points to
voteview.com
* s110 in examples for readKH
* adding component named "dropInfo" to rollcall objects produced
by dropRollCall, per request of Keith Poole (this stores
information about which legislators/votes are retained by
dropRollCall)
* added presidentialElections data from Jackman book manuscript
* bugs in igammaHDR fixed, some typos too
0.96 * Final changes for JSS paper (before release 1.0 accompanying
JSS paper).
* Changed the default formula specification for zero-inflated
models. y ~ x now means y ~ x | x and *not* y ~ x | 1 anymore.
Thus, the same default formula processing is applied to
zero-inflated and hurdle models.
* Error in normalizeIdeal, found by Jeff Lewis
0.95 * fixed fitted() and predict() methods for "hurdle" and
"zeroinfl" for the case when an offset is specified
(this had been erroneously ignored previously)
0.94 * added analytical gradients for hurdle() and zeroinfl()
(speed-up of factor 5-10)
* new package "sandwich" (2.1-0) provides estfun() and bread()
methods for "hurdle" and "zeroinfl" objects, thus sandwich() and
vcovOPG() covariances are available
* extended/improved countreg vignette
* fixed Pearson residuals to use correct zero-augmented variance
* extended predict() methods: type "count" and "zero"
* added extractAIC() methods
0.93 * improving matching legislator and vote names in constrain
functions, in response to sub-optimal behavior reported by Keith
Poole
0.92 * minor errors in various functions spotted with
stricter code checking in R-devel 2.6
* unescaped "%" in documentation for s109
* need negative 1 for negative intercept in another part of
predict.ideal (for the case where the researcher did not supply
burn-in; 05/15/2007).
0.91 * added Monte Carlo simulation of pi (simpi)
0.90 * version bump as requested by Achim
* adding pseudo r-squared stuff
* adding admit data for ordered probit example
* adding logLik.polr
* adding hitmiss method
0.76 * offset and weights arguments have been added to
zeroinfl() and hurdle()
* hurdletest() is a new wrapper for linear.hypothesis() from the
"car" package to test for the presence of hurdles.
* A vignette about count data regression in R has been added
(which in particular explains the ideas behind zeroinfl() and
hurdle()).
* correcting/improving documentation of ideal re identification
and the normalize option
* added absentee ballot data from Orley Ashenfelter, used in BASS
* John Fox noted an error in odTest (wrong p-value); fixed.
0.75 * version bump, requested by CRAN maintainers
* minor typo in help for predict.ideal
* fixed bugs with interactive() in ideal.r
* trouble-shooting predict.ideal as per request of Boris Shor
* bug (?) in predict.ideal; after 0.73 change to negative
intercept, need change in predict.ideal.r to match
* in zeroinfl(): binomial(link = link) is deprecated, use
binomial(link = linkstr) instead
0.74 * deprecating meanzero option in ideal, replace with normalize
* new options for specifying start values in ideal (eigen, random,
or user-supplied list); this fixes a bug reported by Boris Shor
<boris@bshor.com> when working with large rollcall objects
* removed bad escape "\," in readKH reported by Kurt Hornick
<Kurt.Hornik@wu-wien.ac.at>
* dummy entry to force svn commit/update (testing new svn server)
0.73 * added seatsVote class and ca2006 data
* cleaned up startvalues processing in ideal
* improved priors in ideal
* added verbose option to ideal
* less console output from ideal.c
* some changes to documentation, e.g., postProcess gets extra
references
* sort output by posterior means of ideal points in summary.ideal
* improved tracex
* fixed bug in dropRollCall (was dropping legis.data attributes)
* fixed bug in partyLoyalty, called by
summary.rollcall(...,verbose=TRUE)
* finally changed ideal model to have a negative intercept;
required changes to updatex.c, updatey.c, and xreg.c
0.72 * fixed error in bioChemists data found by Bettina Gr?n
<gruen@ci.tuwien.ac.at>, variable kids5 was off by 1 unit, now
runs from min of zero (no kids).
0.71 * fixed bug in betaHPD discovered by John Bullock
0.70 * completely rewritten version of hurdle() and zeroinfl():
- new formula interface of type y ~ x | z where y ~ x specifies
the count model and z the inflation/hurdle regressors. -
re-structured returned value, is now more similar to "glm" objects
- extended/enhanced extractor functions
0.62 * plot.ideal.1d: better left plot margin, based on max length of
legis.name
* plot.ideal.2d: inconsistent testing of presence of beta in ideal
object when overlaying cutting planes
* plot.ideal.Rd: more examples (but in \dontrun)
* tracex: bug for 2d ideal objects
* tracex: 2d, make legend lines heavier for showAll
* tracex: for R >= 2.4, change par() to par(no.readonly=TRUE)
* fixed typo in plot.ideal.Rd
0.61 * fixed bug in summary.ideal found by Keith Poole (8/8/06)
* documentation of ideal section on Identification changed to
reflect presence of postProcess function
* added summary.rollcall into NAMESPACE per request of Jeff Lewis
* no nsl function on Windows, changed readKH to simply call
readLines with a try-error wrapper per suggestion of XP-user Jeff
Lewis
* processing of dropList improved, per suggestion of Jeff Lewis
* cosmetic changes to print.summary.rollcall
* fixed errors caused by removing sysdata.rda; now utility data
sets such as stateinfo and partyinfo have to loaded via data() in
functions inside readKH subfunctions; again, Jeff Lewis reported
error testing readKH function.
0.60 * added postProcess
* added jitter to plot.predict.ideal
* changed "start" to "burnin" in many function that handle ideal
objects
* changed checkStart to checkBurnIn in idealHelper.r, returns
"keep" (logical vector)
* improved documentation for plot1d
* dropped plot1d and plot2d from export in NAMESPACE
* consolidated some help files, making fewer entries in package
index etc
* checked package with codetools(), cleaned up some redundancies,
overwriting of function args inside of functions etc
* minor stylistic changes to titles and descriptions in help files
0.59 * fixed compiler warning in dtnorm regarding return value
* fixed compiler warning in IDEAL regarding double printed as int
* minor documentation fix
* removed unneeded directories
0.58 * documentaton fixes and cleanups, prompted by Kurt Hornik's check
of 0.57 at CRAN
* fixed errors in rollcall documentation
0.57 * added dtl file support to readKH
* extensive reliance on match.call(), rather than carrying around
copies of objects, many changes to numerous functions
* dropList introduced, many functions changed; see dropRollCall
and dropUnanimous (rollcall objects)
* added extractRollCallObject (for ideal objects)
* added computeMargins, for rollcall objects
* added convertCodes, operates on codes component of roll call
object
* tracex handles 2d traces gracefully
* added plot.predict.ideal
* prior precisions in constrain.legis and contstrain.item are .01
for unconstrained parameters
* added s109, dropped s102 as demonstration data, ships with
package
* added vectorRepresentation (rollcall object)
0.56 * changed rollcall class to have legis.data and vote.data data frames
* amended plotting functions appropriately
* rollcall objects have party loyalty scores
* rollcall objects have lopsided data;
summary.rollcall/print.summary.rollcall will display
* ideal saves some barebones summary statistics (posterior means)
* summary.ideal computes standard deviations
* summary.ideal/print.summary.ideal displays information on bills
that fail to discriminate
* plot1d (plot method for 1d ideal objects) has option for all
legislator names
* plot2d (plot method for 2d ideal objects) has option to overlay
estimated cutting lines
* added readKH function and supporting data objects in
R/sysdata.rda (state.info and party)
* readKH has extensive checks and debugging of reads from web
(thanks to Kurt Kornik <Kurt.Hornik@wu-wien.ac.at>)
* minor bug fixes in documentation and examples
* made ideal examples shorter
* add coda to list of required packages
* error in negative binomial hurdle model, added theta to
coefficients dimnames
* added TODO file to top-level directory of package
* fixed bug in print.zeroinfl (thanks to Bettina Gruen
<gruen@ci.tuwien.ac.at>)
* bugs in zeroinfl (Bettina Gruen <gruen@ci.tuwien.ac.at>)
* corrected spelling of Ginsb*u*rg in sc9497 (Supreme Court sample
data)
0.55 * added ideal point estimation (Alex Tahk)
* added gamma functions for Jackman BASS book
0.54 * fixed errors in documentation for summary.zeroinfl
0.53 * edited documentation for odTest
0.52 * changed print.matrix references to print, since print.matrix
deprecated in R > 2.1
* added ntable from Jim Fearon
* added betaHPD
0.51 * fixed error in print.summary.zeroinfl (thanks to Dave Atkins;
datkins@fuller.edu)
0.5 * initial relase to CRAN