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R-bit
R-bit.spec
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File R-bit.spec of Package R-bit
%global packname bit %global rlibdir %{_libdir}/R/library Name: R-%{packname} Version: 1.1_12 Release: 1 Summary: A class for vectors of 1-bit booleans Group: Development/Libraries/Other License: GPL-2.0 URL: http://cran.r-project.org/web/packages/%{packname}/index.html Source0: bit_1.1-12.tar.gz BuildRoot: %{_tmppath}/%{name}-%{version}-build Requires: R-base # Package suggestions BuildRequires: texlive BuildRequires: texinfo BuildRequires: fdupes # %if 0%{?suse_version} <= 1220 && 0%{?suse_version} != 1110 BuildRequires: texlive-fonts-extra %endif BuildRequires: R-base-devel BuildRequires: gcc-c++ # Package suggestions, not required to build #BuildRequires: %description bitmapped vectors of booleans (no NAs), coercion from and to logicals, integers and integer subscripts; fast boolean operators and fast summary statistics. With 'bit' vectors you can store true binary booleans {FALSE,TRUE} at the expense of 1 bit only, on a 32 bit architecture this means factor 32 less RAM and ~ factor 32 more speed on boolean operations. Due to overhead of R calls, actual speed gain depends on the size of the vector: expect gains for vectors of size > 10000 elements. Even for one-time boolean operations it can pay-off to convert to bit, the pay-off is obvious, when such components are used more than once. Reading from and writing to bit is approximately as fast as accessing standard logicals - mostly due to R's time for memory allocation. The package allows to work with pre-allocated memory for return values by calling .Call() directly: when evaluating the speed of C-access with pre-allocated vector memory, coping from bit to logical requires only 70% of the time for copying from logical to logical; and copying from logical to bit comes at a performance penalty of 150%. the package now contains further classes for representing logical selections: 'bitwhich' for very skewed selections and 'ri' for selecting ranges of values for chunked processing. All three index classes can be used for subsetting 'ff' objects (ff-2.1-0 and higher). %prep %setup -q -c -n %{packname} %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 %files %defattr(-, root, root, -) %dir %{rlibdir}/%{packname} %doc %{rlibdir}/%{packname}/html %doc %{rlibdir}/%{packname}/ANNOUNCEMENT-1.0.txt %doc %{rlibdir}/%{packname}/DESCRIPTION %doc %{rlibdir}/%{packname}/NEWS %doc %{rlibdir}/%{packname}/README_devel.txt %{rlibdir}/%{packname}/INDEX %{rlibdir}/%{packname}/NAMESPACE %{rlibdir}/%{packname}/Meta %{rlibdir}/%{packname}/R %{rlibdir}/%{packname}/exec %{rlibdir}/%{packname}/libs %{rlibdir}/%{packname}/help %changelog
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