php - errorexception (e_notice) 정의되지 않은 변수 - actuallabels

도움말, 내 코드에 "ErrorException (E_NOTICE) 정의되지 않은 변수 : actualLabels"오류가 발생했습니다

$title = "Data Confusion Matrix";
$testing_data = DataTesting::count();
$klasifikasi = Klasifikasi::with('sentimen')->get();
foreach($klasifikasi as $kelas){
    $predictedLabels[] = $kelas->sentimen->kategori;
    $testing = DataTesting::where('id_testing',$kelas->id_testing)->first();
    $twitter = TwitterStream::with('sentimen')->where('id_crawling',$testing->id_crawling)->first();
    $actualLabels[] = $twitter->sentimen->kategori;
 }
 $getPrecision = new ControllerConfusionMatrix($actualLabels, $predictedLabels);
 $accuracy = ControllerConfusionMatrix::score($actualLabels, $predictedLabels);
 $recall = $getPrecision->getRecall();
 $precision = $getPrecision->getPrecision();