%global __brp_check_rpaths %{nil}
%global __requires_exclude ^libmpi
%global packname  multipathaic
%global packver   0.1.3
%global rlibdir   /usr/local/lib/R/library

Name:             R-CRAN-%{packname}
Version:          0.1.3
Release:          1%{?dist}%{?buildtag}
Summary:          Multi-Path Stepwise Selection with AIC

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


BuildRequires:    R-devel >= 3.5.0
Requires:         R-core >= 3.5.0
BuildArch:        noarch
BuildRequires:    R-stats 
BuildRequires:    R-utils 
Requires:         R-stats 
Requires:         R-utils 

%description
Implements a multi-path forward selection algorithm using the Akaike
Information Criterion (AIC) for both linear (Gaussian) and logistic
(binomial) regression models. Unlike traditional stepwise methods that
follow a single path, this approach explores multiple competitive model
paths simultaneously by retaining near-optimal models at each step. The
package includes stability estimation via bootstrap resampling and
identifies plausible models based on AIC tolerance and variable stability
thresholds. The information criterion is described by Akaike (1974)
<doi:10.1109/TAC.1974.1100705>, and bootstrap resampling by Efron (1979)
<doi:10.1214/aos/1176344552>.

%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}