nixpkgs/pkgs/applications/science/math/weka/default.nix

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{ stdenv, fetchurl, jre, unzip }:
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stdenv.mkDerivation rec {
name = "weka-${version}";
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version = "3.8.2";
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src = fetchurl {
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url = "mirror://sourceforge/weka/${stdenv.lib.replaceChars ["."]["-"] name}.zip";
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sha256 = "0p353lhhcv3swwn1bl64vkyjk480vv9ghhlyqjxiar4p3xifjayb";
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};
buildInputs = [ unzip ];
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# The -Xmx1000M comes suggested from their download page:
# http://www.cs.waikato.ac.nz/ml/weka/downloading.html
installPhase = ''
mkdir -pv $out/share/weka $out/bin
cp -Rv * $out/share/weka
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cat > $out/bin/weka << EOF
#!${stdenv.shell}
${jre}/bin/java -Xmx1000M -jar $out/share/weka/weka.jar
EOF
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chmod +x $out/bin/weka
'';
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meta = {
homepage = http://www.cs.waikato.ac.nz/ml/weka/;
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description = "Collection of machine learning algorithms for data mining tasks";
license = stdenv.lib.licenses.gpl2Plus;
maintainers = [ stdenv.lib.maintainers.mimadrid ];
platforms = stdenv.lib.platforms.unix;
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};
}