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Updated NEWS.
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krivit committed Dec 23, 2024
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\title{NEWS file for the \code{\link[=ergm-package]{ergm}} package}
\encoding{UTF-8}


%% Note: This needs to be kept in sync with man/macros/ergmTerm.Rd
\newcommand{\ergmTerm}{\code{\link[#1:#2-ergmTerm]{#2#3}}}
\newcommand{\ergmConstraint}{\code{\link[#1:#2-ergmConstraint]{#2#3}}}
\newcommand{\ergmReference}{\code{\link[#1:#2-ergmReference]{#2#3}}}
\newcommand{\ergmHint}{\code{\link[#1:#2-ergmHint]{#2#3}}}
\newcommand{\ergmProposal}{\code{\link[#1:#2-ergmProposal]{#2#3}}}


% When a release is forked, copy the sections to a new release and
% delete unused sections.

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%% }


\section{Changes in version 4.8.0}{

\subsection{NEW FEATURES}{
\itemize{
\item{
A new bipartite term operator \ergmTerm{ergm}{Project}{()}, with aliases \ergmTerm{ergm}{Proj1}{()} and \ergmTerm{ergm}{Proj2}{()}, evaluating the statistics on an undirected valued network of counts constructed by projecting the bipartite network onto one of its modes.
}
\item{
A new family of terms, \ergmTerm{ergm}{nodecovrange}{()}, \ergmTerm{ergm}{nodeocovrange}{()}, \ergmTerm{ergm}{nodeicovrange}{()}, \ergmTerm{ergm}{b1covrange}{()}, and \ergmTerm{ergm}{b2covrange}{()}, to evaluate the sum over the nodes of the range of the specified quantitative attribute value among the node's neighbors. (Thanks to Marion Hoffman for the idea!)
}
\item{
A new family of terms, \ergmTerm{ergm}{nodefactordistinct}{()}, \ergmTerm{ergm}{nodeofactordistinct}{()}, \ergmTerm{ergm}{nodeifactordistinct}{()}, \ergmTerm{ergm}{b1factordistinct}{()}, and \ergmTerm{ergm}{b2factordistinct}{()}, to evaluate the sum over the nodes of the number of distinct values of a categorical factor among the node's neighbors. (Thanks to Marion Hoffman for the idea!)
}
\item{
The \ergmConstraint{ergm}{fixallbut}{()} now supports an \code{\link{rlebdm}} (in addition to an edge list matrix and a \code{\link[network]{network}}) for its argument.
}
}
}


\subsection{BUG FIXES}{
\itemize{
\item{
Fix in stochastic approximation code for compatibility with most recent \CRANpkg{coda}.
}
\item{
In \code{\link[ergm]{ergm()}}, a bug in initialization of MH proposals for constrained sampling requesting auxiliaries has been fixed.
}
}
}


\subsection{OTHER USER-VISIBLE CHANGES}{
\itemize{
\item{
Precision of geometrically weighted statistics (degrees and shared partners) has been improved, particularly for large decay parameters.
}
\item{
Dynamic term documentation is now more robust to extension developer error.
}
\item{
A new \code{\link[=as.rle.rlebdm]{as.rle()}} method for \code{\link{rlebdm}} objects to cast it back to an \code{\link{rle}}.
}
}
}

\subsection{C-LEVEL FACILITIES}{
\itemize{
\item{
Degree-conditioned proposals are now exported in \file{inst/include/}.
}
\item{
The M-H proposal API now makes lengths of input vectors available to the proposals, paralleling the change statistics API.
}
}
}

%% \subsection{UTILITIES}{
%% \itemize{
%% \item Likewise, "UTILITIES" is probably unnecessary.
%% }
%% }

%% \subsection{INSTALLATION}{
%% \itemize{
%% \item ... as is "INSTALLATION".
%% }
%% }

%% \subsection{PACKAGE INSTALLATION}{
%% \itemize{
%% \item ditto.
%% }
%% }

}


\section{Changes in version 4.7.5}{

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\code{\link[=blockdiag-ergmConstraint]{blockdiag}} constraint initialization now detects when blocks are non-contiguous and stops with an error. (Previously, it would behave in undefined ways.)
}
\item{
\code{\link[=Sum-ergmTerm]{Sum}} operator now handles \code{\link{I}()} label specifications correctly; this also fixes an error in the \code{\link[=Prod-ergmTerm]{Prod}} term.
\ergmTerm{ergm}{Sum}{} operator now handles \code{\link{I}()} label specifications correctly; this also fixes an error in the \ergmTerm{ergm}{Prod}{} term.
}
\item{
Detection of dyadic dependence now ignores dyadic dependence of hints (since they do not affect the sample space) and auxiliaries (since they do not, in and of themselves, add dyad-dependent statistics).
Expand All @@ -123,7 +209,7 @@
In proposal help, listing of proposal table entries works again.
}
\item{
\code{\link[=nodemix-ergmTerm]{nodemix}()} now uses correct parameter names.
\ergmTerm{ergm}{nodemix}{()} now uses correct parameter names.
}
\item{
Godambe information for the MPLE now works if the model has an offset. (Thanks, Cornelius Fritz for reporting and Michał Bojanowski for fixing.)
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When constructing the starting networks for missing data MCMC, imputation of dyads is skipped if the constraints are dyad-dependent, since inserting edges may break the constraint.
}
\item{
\code{\link[=edgecov-ergmTerm]{edgecov}()} and \code{\link[=dyadcov-ergmTerm]{dyadcov}()} now handle \code{\link[network]{network}}-format input correctly.
\ergmTerm{ergm}{edgecov}{()} and \ergmTerm{ergm}{dyadcov}{()} now handle \code{\link[network]{network}}-format input correctly.
}
\item{
Missing data MLE code can now handle the scenarios in which the statistics in the constrained sample are constant and/or the statistics in the unconstrained sample are highly correlated.
Expand All @@ -144,10 +230,10 @@
Likelihood calculation is now robust to dropped parameters and parameters fixed at infinity.
}
\item{
\code{\link[Label-ergmTerm]{Label}()} operator now documents its behavior when the model is curved more clearly.
\ergmTerm{ergm}{Label}{()} operator now documents its behavior when the model is curved more clearly.
}
\item{
Invalid \code{levels2} specification for \code{\link[=mm-ergmTerm]{mm()}} no longer causes memory errors.
Invalid \code{levels2} specification for \ergmTerm{ergm}{mm}{()} no longer causes memory errors.
}
\item{
Valued proposal updater function was not being passed the current edge state.
Expand All @@ -167,7 +253,7 @@
\code{\link{LARGEST}}, \code{\link{SMALLEST}}, and \code{\link{COLLAPSE_SMALLEST}} now break ties lexicographically with a warning.
}
\item{
\code{\link[=absdiffcat-ergmTerm]{absdiffcat}} is now more memory-efficient during initialization.
\ergmTerm{ergm}{absdiffcat}{} is now more memory-efficient during initialization.
}
\item{
MCMLE estimation code for missing data MLE with high missingness fraction is more robust.
Expand All @@ -191,7 +277,7 @@
\code{\link{ergm_Init_stop}()}, \code{\link{ergm_Init_warning}()}, and \code{\link{ergm_Init_message}()} that behave more like their \pkg{base} counterparts have been added to the API. \code{\link{ergm_Init_abort}()}, \code{\link{ergm_Init_warn}()}, and \code{\link{ergm_Init_info}()} will eventually change to use their \CRANpkg{rlang} semantics.
}
\item{
\code{\link[=edgecov-ergmTerm]{edgecov}()} and \code{\link[=dyadcov-ergmTerm]{dyadcov}()} now check that their covariate matrix has the correct dimension.
\ergmTerm{ergm}{edgecov}{()} and \ergmTerm{ergm}{dyadcov}{()} now check that their covariate matrix has the correct dimension.
}
\item{
Constraints \code{\link[fixedas-ergmConstraint]{fixedas}()} and \code{\link[fixedas-ergmConstraint]{fixallbut}()} now warn when given a network whose size does not match the LHS network's.
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New functions \code{\link{search.ergmHints}()} and \code{\link{search.ergmReferences}()} can now be used to search available \code{\link{ergmHints}} and \code{\link{ergmReferences}}, respectively.
}
\item{
A new \code{\link[=For-ergmTerm]{For}()} term operator to construct a list of terms with some varying parameter.
A new \ergmTerm{ergm}{For}{()} term operator to construct a list of terms with some varying parameter.
}
\item{
Term API vignette is now more complete, and includes all API elements, not just the post-4.0 ones.
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\subsection{NEW FEATURES}{
\itemize{
\item{
In terms \code{\link[=edgecov-ergmTerm]{edgecov}()} and \code{\link[=dyadcov-ergmTerm]{dyadcov}()}, the argument can now be a network.
In terms \ergmTerm{ergm}{edgecov}{()} and \ergmTerm{ergm}{dyadcov}{()}, the argument can now be a network.
}
}
}
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}

\item{
Term \code{\link[=nodemix-ergmTerm]{nodemix}} can now be passed a \code{levels2} argument that is a \code{\link{factor}} or \code{\link{character}} and optionally a matrix, allowing multiple cells to be mapped to the same statistic. (Joyce Cheng)
Term \ergmTerm{ergm}{nodemix}{} can now be passed a \code{levels2} argument that is a \code{\link{factor}} or \code{\link{character}} and optionally a matrix, allowing multiple cells to be mapped to the same statistic. (Joyce Cheng)
}

\item{
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}

\item{
\code{\link[=edgecov-ergmTerm]{edgecov}} and \code{\link[=dyadcov-ergmTerm]{dyadcov}} now detect and stop with an error when the specified network attribute is not found.
\ergmTerm{ergm}{edgecov}{} and \ergmTerm{ergm}{dyadcov}{} now detect and stop with an error when the specified network attribute is not found.
}

\item{
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}

\item{
\code{\link{check.ErgmTerm}()} helper function can now also capture the expressions resulting in term arguments. This incidentally fixes a regression in statistic naming of \code{\link{edgecov-ergmTerm}} and \code{\link{dyadcov-ergmTerm}} effects.
\code{\link{check.ErgmTerm}()} helper function can now also capture the expressions resulting in term arguments. This incidentally fixes a regression in statistic naming of \ergmTerm{ergm}{edgecov}{()} and \ergmTerm{ergm}{dyadcov}{()} effects.
}

\item{
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