573 lines
21 KiB
PHP
573 lines
21 KiB
PHP
<?php
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namespace App\Http\Controllers;
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use Illuminate\Http\Request;
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use App\Models\Criteria;
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use App\Models\KriteriaAhp;
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use Illuminate\Support\Facades\DB;
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use Illuminate\Support\Facades\Session;
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class CriteriaController extends Controller
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{
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public function index()
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{
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// $data['kriteria'] = DB::table('kriteria')->get();
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$data['kriteria'] = DB::table('kriteria')->orderByDesc('bobot')->get();
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return view('backend.kriteria.index', $data);
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}
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public function tambah()
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{
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return view('backend.kriteria.tambah');
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}
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function create(Request $request)
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{
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$request->validate([
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'nama_kriteria' => 'required|unique:kriteria',
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'keterangan_upload' => 'required'
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], [
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'nama_kriteria.required' => 'Nama wajib diisi',
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'nama_kriteria.unique' => 'Nama kriteria sudah ada, harap menggunakan nama lain',
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'keterangan_upload.required' => 'Keterangan Upload wajib diisi',
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]);
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$save = new Criteria();
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$save->nama_kriteria = trim($request->nama_kriteria);
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$save->keterangan_upload = trim($request->keterangan_upload);
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$save->save();
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return redirect()->route('kriteria')->with(['success' => 'Tambah Kriteria Berhasil!']);
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}
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function edit($id)
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{
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$data = Criteria::where('id', $id)->get();
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return view('backend.kriteria.edit', ['kt' => $data]);
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}
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function update(Request $request)
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{
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$request->validate([
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'nama_kriteria' => 'required',
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'keterangan_upload' => 'required'
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], [
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'nama_kriteria.required' => 'Nama wajib diisi',
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'keterangan_upload.required' => 'Keterangan Upload wajib diisi',
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]);
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$kriteria = Criteria::find($request->id);
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$kriteria->nama_kriteria = $request->nama_kriteria;
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$kriteria->keterangan_upload = $request->keterangan_upload;
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$kriteria->save();
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return redirect()->route('kriteria')->with(['success' => 'Edit Kriteria Berhasil!']);
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}
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function hapus($id)
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{
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DB::table('kriteria')->where('id', $id)->delete();
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return redirect()->route('kriteria')->with(['success' => 'Hapus Berhasil!']);
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}
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function preferensi()
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{
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$data['kriteria'] = Criteria::all();
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$result = array();
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$i = 0;
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foreach ($data['kriteria'] as $row1) {
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$ii = 0;
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foreach ($data['kriteria'] as $row2) {
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if ($i < $ii) {
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// $kriteria_ahp = $this->Kriteria_ahp_model->get_kriteria_ahp($row1->id_kriteria, $row2->id_kriteria)->row();
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$kriteria_ahp =
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DB::table('kriteria_ahps')
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// KriteriaAhp::
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->where('id_kriteria1', '=', $row1->id)
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->where('id_kriteria2', '=', $row2->id)
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->first();
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if (empty($kriteria_ahp)) {
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$ahp = new KriteriaAhp();
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$ahp->id_kriteria1 = $row1->id;
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$ahp->id_kriteria2 = $row2->id;
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$ahp->nilai1 = 1;
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$ahp->nilai2 = 1;
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$ahp->save();
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// $params = array([]);
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// $this->Kriteria_ahp_model->add_kriteria_ahp($params);
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$nilai_1 = 1;
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$nilai_2 = 1;
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} else {
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$nilai_1 = $kriteria_ahp->nilai1;
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$nilai_2 = $kriteria_ahp->nilai2;
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}
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$nilai = 0;
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if ($nilai_1 < 1) {
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$nilai = $nilai_2;
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} elseif ($nilai_1 > 1) {
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$nilai = -$nilai_1;
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} elseif ($nilai_1 == 1) {
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$nilai = 1;
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}
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$result[$row1->id][$row2->id] = $nilai;
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}
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$ii++;
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}
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$i++;
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}
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$data['kepentingan'] = [
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'1' => "Sama pentingnya (Equal Importance)",
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'2' => "Sama hingga sedikit lebih penting",
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'3' => "Sedikit lebih penting (Slightly more importance)",
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'4' => "Sedikit lebih hingga jelas lebih penting",
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'5' => "Jelas lebih penting (Materially more importance)",
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'6' => "Jelas hingga sangat jelas lebih penting",
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'7' => "Sangat jelas lebih penting (Significantly more importance)",
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'8' => "Sangat jelas hingga mutlak lebih penting",
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'9' => "Mutlak lebih penting (Absolutely more importance)",
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];
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$data['kriteria_ahp'] = $result;
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return view('backend.kriteria.prioritas', $data);
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}
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function bobot(Request $request)
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{
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$data['kriteria'] = Criteria::all();
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if (isset($_POST['save'])) {
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KriteriaAhp::truncate();
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$i = 0;
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foreach ($data['kriteria'] as $row1) {
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$ii = 0;
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foreach ($data['kriteria'] as $row2) {
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if ($i < $ii) {
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$nilai_input = $request->post('nilai_' . $row1->id . '_' . $row2->id);
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$nilai_1 = 0;
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$nilai_2 = 0;
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if ($nilai_input < 1) {
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$nilai_1 = abs($nilai_input);
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$nilai_2 = number_format(1 / abs($nilai_input), 5);
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} elseif ($nilai_input > 1) {
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$nilai_1 = number_format(1 / abs($nilai_input), 5);
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$nilai_2 = abs($nilai_input);
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} elseif ($nilai_input == 1) {
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$nilai_1 = 1;
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$nilai_2 = 1;
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}
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KriteriaAhp::insert([
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'id_kriteria1' => $row1->id,
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'id_kriteria2' => $row2->id,
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'nilai1' => $nilai_1,
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'nilai2' => $nilai_2,
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]);
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}
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$ii++;
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}
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$i++;
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}
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return redirect()->back()->with(['success' => 'Nilai perbandingan kriteria berhasil disimpan!']);
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}
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if (isset($_POST['check'])) {
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if (count($data['kriteria']) < 3) {
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return redirect()->back()->with(['error' => 'Jumlah kriteria kurang, minimal 3!']);
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} else {
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$id_kriteria = array();
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foreach ($data['kriteria'] as $row)
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$id_kriteria[] = $row->id;
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}
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// perhitungan metode AHP
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$matrik_kriteria = $this->ahp_get_matrik_kriteria($id_kriteria);
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$jumlah_kolom = $this->ahp_get_jumlah_kolom($matrik_kriteria);
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$matrik_normalisasi = $this->ahp_get_normalisasi($matrik_kriteria, $jumlah_kolom);
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$prioritas = $this->ahp_get_prioritas($matrik_normalisasi);
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$matrik_baris = $this->ahp_get_matrik_baris($prioritas, $matrik_kriteria);
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$jumlah_matrik_baris = $this->ahp_get_jumlah_matrik_baris($matrik_baris);
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$hasil_tabel_konsistensi = $this->ahp_get_tabel_konsistensi($jumlah_matrik_baris, $prioritas);
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$n = count($jumlah_matrik_baris);
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$lambda_maks = array_sum($jumlah_matrik_baris);
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$ci = ($lambda_maks - $n) / ($n - 1);
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$ir = array(0, 0, 0.58, 0.9, 1.12, 1.24, 1.32, 1.41, 1.45, 1.49, 1.51, 1.48, 1.56, 1.57, 1.59);
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if ($n <= 15) {
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$ir = $ir[$n - 1];
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} else {
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$ir = $ir[14];
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}
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$cr = number_format($ci / $ir, 5);
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$i = 0;
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foreach ($data['kriteria'] as $row) {
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$kriteria = Criteria::find($row->id);
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$kriteria->bobot = $prioritas[$i++];
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$kriteria->save();
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}
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$data['list_data'] = $this->tampil_data_1($matrik_kriteria, $jumlah_kolom);
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$data['list_data2'] = $this->tampil_data_2($matrik_normalisasi, $prioritas, $jumlah_kolom);
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$data['list_data3'] = $this->tampil_data_3($matrik_baris, $jumlah_matrik_baris);
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$list_data = $this->tampil_data_4($jumlah_matrik_baris, $prioritas, $hasil_tabel_konsistensi);
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$data['list_data4'] = $list_data[0];
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$data['list_data5'] = $list_data[1];
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if ($cr <= 0.1) {
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Session::flash('success', 'Nilai perbandingan: KONSISTEN!');
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} else {
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Session::flash('error', "Nilai perbandingan: $cr atau TIDAK KONSISTEN! ");
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}
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}
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$result = array();
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$i = 0;
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foreach ($data['kriteria'] as $row1) {
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$ii = 0;
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foreach ($data['kriteria'] as $row2) {
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if ($i < $ii) {
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$kriteria_ahp =
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DB::table('kriteria_ahps')
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->where('id_kriteria1', '=', $row1->id)
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->where('id_kriteria2', '=', $row2->id)
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->first();
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if (empty($kriteria_ahp)) {
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$ahp = new KriteriaAhp();
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$ahp->id_kriteria1 = $row1->id;
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$ahp->id_kriteria2 = $row2->id;
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$ahp->nilai1 = 1;
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$ahp->nilai2 = 1;
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$ahp->save();
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$nilai_1 = 1;
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$nilai_2 = 1;
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} else {
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$nilai_1 = $kriteria_ahp->nilai1;
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$nilai_2 = $kriteria_ahp->nilai2;
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}
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$nilai = 0;
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if ($nilai_1 < 1) {
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$nilai = $nilai_2;
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} elseif ($nilai_1 > 1) {
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$nilai = -$nilai_1;
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} elseif ($nilai_1 == 1) {
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$nilai = 1;
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}
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$result[$row1->id][$row2->id] = $nilai;
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}
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$ii++;
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}
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$i++;
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}
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$data['kepentingan'] = [
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'1' => "Sama pentingnya (Equal Importance)",
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'2' => "Sama hingga sedikit lebih penting",
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'3' => "Sedikit lebih penting (Slightly more importance)",
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'4' => "Sedikit lebih hingga jelas lebih penting",
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'5' => "Jelas lebih penting (Materially more importance)",
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'6' => "Jelas hingga sangat jelas lebih penting",
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'7' => "Sangat jelas lebih penting (Significantly more importance)",
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'8' => "Sangat jelas hingga mutlak lebih penting",
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'9' => "Mutlak lebih penting (Absolutely more importance)",
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];
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$data['kriteria_ahp'] = $result;
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return view('backend.kriteria.prioritas', $data);
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}
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// --- metode AHP --- START
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public function ahp_get_matrik_kriteria($kriteria)
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{
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$matrik = array();
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$i = 0;
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foreach ($kriteria as $row1) {
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$ii = 0;
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foreach ($kriteria as $row2) {
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if ($i == $ii) {
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$matrik[$i][$ii] = 1;
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} else {
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if ($i < $ii) {
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$kriteria_ahp = DB::table('kriteria_ahps')
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->where('id_kriteria1', '=', $row1)
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->where('id_kriteria2', '=', $row2)
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->first();
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if (empty($kriteria_ahp)) {
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$matrik[$i][$ii] = 1;
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$matrik[$ii][$i] = 1;
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} else {
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$matrik[$i][$ii] = $kriteria_ahp->nilai1;
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$matrik[$ii][$i] = $kriteria_ahp->nilai2;
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}
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}
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}
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$ii++;
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}
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$i++;
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}
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return $matrik;
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}
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public function ahp_get_jumlah_kolom($matrik)
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{
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$jumlah_kolom = array();
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for ($i = 0; $i < count($matrik); $i++) {
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$jumlah_kolom[$i] = 0;
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for ($ii = 0; $ii < count($matrik); $ii++) {
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$jumlah_kolom[$i] = $jumlah_kolom[$i] + $matrik[$ii][$i];
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}
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}
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return $jumlah_kolom;
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}
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public function ahp_get_normalisasi($matrik, $jumlah_kolom)
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{
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$matrik_normalisasi = array();
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for ($i = 0; $i < count($matrik); $i++) {
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for ($ii = 0; $ii < count($matrik); $ii++) {
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$matrik_normalisasi[$i][$ii] = $matrik[$i][$ii] / $jumlah_kolom[$ii];
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// $matrik_normalisasi[$i][$ii] = $matrik[$i][$ii] / $jumlah_kolom[$ii];
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}
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}
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return $matrik_normalisasi;
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}
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public function ahp_get_prioritas($matrik_normalisasi)
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{
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$prioritas = array();
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for ($i = 0; $i < count($matrik_normalisasi); $i++) {
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$prioritas[$i] = 0;
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for ($ii = 0; $ii < count($matrik_normalisasi); $ii++) {
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$prioritas[$i] = $prioritas[$i] + $matrik_normalisasi[$i][$ii];
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}
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$prioritas[$i] = $prioritas[$i] / count($matrik_normalisasi);
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// $prioritas[$i] = $prioritas[$i] / count($matrik_normalisasi);
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}
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return $prioritas;
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}
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public function ahp_get_matrik_baris($prioritas, $matrik_kriteria)
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{
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$matrik_baris = array();
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for ($i = 0; $i < count($matrik_kriteria); $i++) {
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for ($ii = 0; $ii < count($matrik_kriteria); $ii++) {
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$matrik_baris[$i][$ii] = $prioritas[$ii] * $matrik_kriteria[$i][$ii];
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}
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}
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return $matrik_baris;
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}
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public function ahp_get_jumlah_matrik_baris($matrik_baris)
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{
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$jumlah_baris = array();
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for ($i = 0; $i < count($matrik_baris); $i++) {
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$jumlah_baris[$i] = 0;
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for ($ii = 0; $ii < count($matrik_baris); $ii++) {
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$jumlah_baris[$i] = $jumlah_baris[$i] + $matrik_baris[$i][$ii];
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}
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}
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return $jumlah_baris;
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}
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public function ahp_get_tabel_konsistensi($jumlah_matrik_baris, $prioritas)
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{
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$jumlah = array();
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for ($i = 0; $i < count($jumlah_matrik_baris); $i++) {
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$jumlah[$i] = $jumlah_matrik_baris[$i] + $prioritas[$i];
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}
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return $jumlah;
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}
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public function ahp_uji_konsistensi($tabel_konsistensi)
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{
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$jumlah = array_sum($tabel_konsistensi);
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$n = count($tabel_konsistensi);
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$lambda_maks = $jumlah / $n;
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$ci = ($lambda_maks - $n) / ($n - 1);
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$ir = array(0, 0, 0.58, 0.9, 1.12, 1.24, 1.32, 1.41, 1.45, 1.49, 1.51, 1.48, 1.56, 1.57, 1.59);
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if ($n <= 15) {
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$ir = $ir[$n - 1];
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} else {
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$ir = $ir[14];
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}
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$cr = number_format($ci / $ir, 5);
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if ($cr <= 0.1) {
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// return true;
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Session::flash('success', 'Nilai perbandingan: KONSISTEN!');
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} else {
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Session::flash('error', "Nilai perbandingan: $cr atau TIDAK KONSISTEN!");
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// return false;
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}
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return $cr;
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}
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// --- metode AHP --- END
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// --- untuk menampilkan langkah perhitungan ---
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public function tampil_data_1($matrik_kriteria, $jumlah_kolom)
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{
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$kriteria = Criteria::all();
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// --- tabel matriks perbandingan berpasangan
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$list_data = '';
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$list_data .= '<tr><td></td>';
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foreach ($kriteria as $row) {
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$list_data .= '<td class="text-center">' . $row->nama_kriteria . '</td>';
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}
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$list_data .= '</tr>';
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$i = 0;
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foreach ($kriteria as $row) {
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$list_data .= '<tr>';
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$list_data .= '<td>' . $row->nama_kriteria . '</td>';
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$ii = 0;
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foreach ($kriteria as $row2) {
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$list_data .= '<td class="text-center">' . $matrik_kriteria[$i][$ii] . '</td>';
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$ii++;
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}
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$list_data .= '</tr>';
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$i++;
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}
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$list_data .= '<tr><td class="font-weight-bold">Jumlah</td>';
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for ($i = 0; $i < count($jumlah_kolom); $i++) {
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$list_data .= '<td class="text-center font-weight-bold">' . $jumlah_kolom[$i] . '</td>';
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}
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$list_data .= '</tr>';
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// ---
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return $list_data;
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}
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public function tampil_data_2($matrik_normalisasi, $prioritas, $jumlah_kolom)
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{
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$kriteria = Criteria::all();
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// --- matriks nilai kriteria
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$list_data2 = '';
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$list_data2 .= '<tr><td></td>';
|
|
foreach ($kriteria as $row) {
|
|
$list_data2 .= '<td class="text-center">' . $row->nama_kriteria . '</td>';
|
|
}
|
|
$list_data2 .= '<td class="text-center font-weight-bold">Jumlah</td>';
|
|
$list_data2 .= '<td class="text-center font-weight-bold">Prioritas</td>';
|
|
$list_data2 .= '<td class="text-center font-weight-bold">Eigen Value</td>';
|
|
$list_data2 .= '</tr>';
|
|
$i = 0;
|
|
foreach ($kriteria as $row) {
|
|
$list_data2 .= '<tr>';
|
|
$list_data2 .= '<td>' . $row->nama_kriteria . '</td>';
|
|
$jumlah = 0;
|
|
$ii = 0;
|
|
foreach ($kriteria as $row2) {
|
|
$list_data2 .= '<td class="text-center">' . $matrik_normalisasi[$i][$ii] . '</td>';
|
|
$jumlah += $matrik_normalisasi[$i][$ii];
|
|
$ii++;
|
|
}
|
|
$eigenvalue = $prioritas[$i] * $jumlah_kolom[$i];
|
|
$list_data2 .= '<td class="text-center font-weight-bold">' . $jumlah . '</td>';
|
|
$list_data2 .= '<td class="text-center font-weight-bold">' . $prioritas[$i] . '</td>';
|
|
$list_data2 .= '<td class="text-center font-weight-bold">' . $eigenvalue . '</td>';
|
|
$list_data2 .= '</tr>';
|
|
$i++;
|
|
}
|
|
// ---
|
|
return $list_data2;
|
|
}
|
|
|
|
public function tampil_data_3($matrik_baris, $jumlah_matrik_baris)
|
|
{
|
|
$kriteria = Criteria::all();
|
|
// --- matriks penjumlahan setiap baris
|
|
$list_data3 = '';
|
|
$list_data3 .= '<tr><td></td>';
|
|
foreach ($kriteria as $row) {
|
|
$list_data3 .= '<td class="text-center">' . $row->nama_kriteria . '</td>';
|
|
}
|
|
$list_data3 .= '<td class="text-center font-weight-bold">Jumlah</td>';
|
|
$list_data3 .= '</tr>';
|
|
$i = 0;
|
|
foreach ($kriteria as $row) {
|
|
$list_data3 .= '<tr>';
|
|
$list_data3 .= '<td>' . $row->nama_kriteria . '</td>';
|
|
$ii = 0;
|
|
foreach ($kriteria as $row2) {
|
|
$list_data3 .= '<td class="text-center">' . $matrik_baris[$i][$ii] . '</td>';
|
|
$ii++;
|
|
}
|
|
$list_data3 .= '<td class="text-center font-weight-bold">' . $jumlah_matrik_baris[$i] . '</td>';
|
|
$list_data3 .= '</tr>';
|
|
$i++;
|
|
}
|
|
// ---
|
|
return $list_data3;
|
|
}
|
|
|
|
public function tampil_data_4($jumlah_matrik_baris, $prioritas, $hasil_tabel_konsistensi)
|
|
{
|
|
$kriteria = Criteria::all();
|
|
// --- perhitungan rasio konsistensi
|
|
$list_data4 = '';
|
|
$list_data4 .= '<tr><td></td>';
|
|
$list_data4 .= '<td class="text-center">Jumlah per Baris</td>';
|
|
$list_data4 .= '<td class="text-center">Prioritas</td>';
|
|
$list_data4 .= '</tr>';
|
|
$i = 0;
|
|
foreach ($kriteria as $row) {
|
|
$list_data4 .= '<tr>';
|
|
$list_data4 .= '<td>' . $row->id_kriteria . '</td>';
|
|
$list_data4 .= '<td class="text-center">' . $jumlah_matrik_baris[$i] . '</td>';
|
|
$list_data4 .= '<td class="text-center">' . $prioritas[$i] . '</td>';
|
|
$list_data4 .= '</tr>';
|
|
$i++;
|
|
}
|
|
|
|
$n = count($jumlah_matrik_baris);
|
|
$lambda_maks = array_sum($jumlah_matrik_baris);
|
|
$ci = ($lambda_maks - $n) / ($n - 1);
|
|
$ir = array(0, 0, 0.58, 0.9, 1.12, 1.24, 1.32, 1.41, 1.45, 1.49, 1.51, 1.48, 1.56, 1.57, 1.59);
|
|
if ($n <= 15) {
|
|
$ir = $ir[$n - 1];
|
|
} else {
|
|
$ir = $ir[14];
|
|
}
|
|
$cr = number_format($ci / $ir, 5);
|
|
|
|
$list_data5 = '';
|
|
$list_data5 .= '<table class="table">
|
|
<tr>
|
|
<td width="100">n </td>
|
|
<td>= ' . $n . '</td>
|
|
</tr>
|
|
<tr>
|
|
<td width="100">λ maks</td>
|
|
<td>= ' . number_format($lambda_maks, 5) . '</td>
|
|
</tr>
|
|
<tr>
|
|
<td width="100">CI</td>
|
|
<td>= ' . number_format($ci, 5) . '</td>
|
|
</tr>
|
|
<tr>
|
|
<td width="100">CR</td>
|
|
<td>= ' . $cr . '</td>
|
|
</tr>
|
|
<tr>
|
|
<td width="100">CR <= 0.1</td>';
|
|
if ($cr <= 0.1) {
|
|
$list_data5 .= '
|
|
<td>Konsisten</td>';
|
|
} else {
|
|
$list_data5 .= '
|
|
<td>Tidak Konsisten</td>';
|
|
}
|
|
$list_data5 .= '
|
|
</tr>
|
|
</table>';
|
|
// ---
|
|
return array($list_data4, $list_data5);
|
|
}
|
|
}
|