%global __brp_check_rpaths %{nil}
%global __requires_exclude ^libmpi
%global packname  dfms
%global packver   1.0.1
%global rlibdir   /usr/local/lib/R/library

Name:             R-CRAN-%{packname}
Version:          1.0.1
Release:          1%{?dist}%{?buildtag}
Summary:          Dynamic Factor Models

License:          GPL-3
URL:              https://cran.r-project.org/package=%{packname}
Source0:          %{url}&version=%{packver}#/%{packname}_%{packver}.tar.gz


BuildRequires:    R-devel >= 4.1.0
Requires:         R-core >= 4.1.0
BuildRequires:    R-CRAN-collapse >= 2.0.0
BuildRequires:    R-CRAN-Rcpp >= 1.0.1
BuildRequires:    R-CRAN-RcppArmadillo 
Requires:         R-CRAN-collapse >= 2.0.0
Requires:         R-CRAN-Rcpp >= 1.0.1

%description
Efficient estimation of Dynamic Factor Models using the Expectation
Maximization (EM) algorithm or Two-Step (2S) estimation, supporting
datasets with missing data and mixed-frequency nowcasting applications.
Factors follow a stationary VAR process of order p. Estimation options
include: running the Kalman Filter and Smoother once with PCA initial
values (2S) as in Doz, Giannone and Reichlin (2011)
<doi:10.1016/j.jeconom.2011.02.012>; iterated Kalman Filtering and
Smoothing until EM convergence as in Doz, Giannone and Reichlin (2012)
<doi:10.1162/REST_a_00225>; or the adapted EM algorithm of Banbura and
Modugno (2014) <doi:10.1002/jae.2306>, allowing arbitrary missing-data
patterns and monthly-quarterly mixed-frequency datasets. The
implementation uses the 'Armadillo' 'C++' library and the 'collapse'
package for fast estimation. A comprehensive set of methods supports
interpretation and visualization, forecasting, and decomposition of the
'news' content of macroeconomic data releases following Banbura and
Modugno (2014). Information criteria to choose the number of factors are
also provided, following Bai and Ng (2002) <doi:10.1111/1468-0262.00273>.

%prep
%setup -q -c -n %{packname}

# fix end of executable files
find -type f -executable -exec grep -Iq . {} \; -exec sed -i -e '$a\' {} \;
# prevent binary stripping
[ -d %{packname}/src ] && find %{packname}/src -type f -exec \
  sed -i 's@/usr/bin/strip@/usr/bin/true@g' {} \; || true
[ -d %{packname}/src ] && find %{packname}/src/Make* -type f -exec \
  sed -i 's@-g0@@g' {} \; || true
# don't allow local prefix in executable scripts
find -type f -executable -exec sed -Ei 's@#!( )*/usr/local/bin@#!/usr/bin@g' {} \;

%build

%install

mkdir -p %{buildroot}%{rlibdir}
%{_bindir}/R CMD INSTALL -l %{buildroot}%{rlibdir} %{packname}
test -d %{packname}/src && (cd %{packname}/src; rm -f *.o *.so)
rm -f %{buildroot}%{rlibdir}/R.css
# remove buildroot from installed files
find %{buildroot}%{rlibdir} -type f -exec sed -i "s@%{buildroot}@@g" {} \;

%files
%{rlibdir}/%{packname}