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        • VLFeat.h
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          • utils
            • images
              • ImageUtils.scala
              • Image.scala
              • ImageConversions.scala
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            • external
              • VLFeat.scala
              • EncEval.scala
            • MatrixUtils.scala
            • MLlibUtils.scala
          • workflow
            • PipelineDatum.scala
            • WeightedNode.scala
            • GraphId.scala
            • Graph.scala
            • SavedStateLoadRule.scala
            • AutoCacheRule.scala
            • GatherTransformerOperator.scala
            • NodeOptimizationRule.scala
            • GraphExecutor.scala
            • AnalysisUtils.scala
            • Operator.scala
            • Chainable.scala
            • Rule.scala
            • DefaultOptimizer.scala
            • Transformer.scala
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            • Pipeline.scala
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            • WeightedOperator.scala
            • Expression.scala
            • PipelineResult.scala
            • SparkUtilWrapper.scala
            • PipelineDataset.scala
            • FittedPipeline.scala
            • ExtractSaveablePrefixes.scala
            • ChainUtils.scala
          • evaluation
            • BinaryClassifierEvaluator.scala
            • MeanAveragePrecisionEvaluator.scala
            • AugmentedExamplesEvaluator.scala
            • MulticlassClassifierEvaluator.scala
            • Evaluator.scala
          • pipelines
            • nlp
              • StupidBackoffPipeline.scala
            • images
              • cifar
                • RandomPatchCifarAugmentedKernel.scala
                • RandomCifar.scala
                • LinearPixels.scala
                • RandomPatchCifarAugmented.scala
                • RandomPatchCifar.scala
                • RandomPatchCifarKernel.scala
              • mnist
                • MnistRandomFFT.scala
              • imagenet
                • ImageNetSiftLcsFV.scala
              • voc
                • VOCSIFTFisher.scala
            • speech
              • TimitPipeline.scala
            • text
              • AmazonReviewsPipeline.scala
              • NewsgroupsPipeline.scala
            • FunctionNode.scala
            • Logging.scala
          • nodes
            • nlp
              • NGramsHashingTF.scala
              • StupidBackoff.scala
              • indexers.scala
              • StringUtils.scala
              • WordFrequencyEncoder.scala
              • CoreNLPFeatureExtractor.scala
              • ngrams.scala
              • HashingTF.scala
            • images
              • Windower.scala
              • LabeledImageExtractors.scala
              • SymmetricRectifier.scala
              • DaisyExtractor.scala
              • HogExtractor.scala
              • Cropper.scala
              • external
                • FisherVector.scala
                • SIFTExtractor.scala
              • LCSExtractor.scala
              • Pooler.scala
              • FisherVector.scala
              • RandomImageTransformer.scala
              • ImageVectorizer.scala
              • PixelScaler.scala
              • GrayScaler.scala
              • Convolver.scala
              • RandomPatcher.scala
              • CenterCornerPatcher.scala
              • SIFTExtractor.scala
            • util
              • VectorCombiner.scala
              • ClassLabelIndicators.scala
              • Cacher.scala
              • CommonSparseFeatures.scala
              • AllSparseFeatures.scala
              • Shuffler.scala
              • MaxClassifier.scala
              • SparseFeatureVectorizer.scala
              • Identity.scala
              • Sparsify.scala
              • FloatToDouble.scala
              • VectorSplitter.scala
              • Densify.scala
              • TopKClassifier.scala
              • MatrixVectorizer.scala
            • learning
              • SparseLinearMapper.scala
              • CostModel.scala
              • ZCAWhitener.scala
              • LocalLeastSquaresEstimator.scala
              • DistributedPCA.scala
              • PCA.scala
              • GaussianMixtureModel.scala
              • Gradient.scala
              • KernelBlockLinearMapper.scala
              • LinearDiscriminantAnalysis.scala
              • LBFGS.scala
              • LinearMapper.scala
              • LogisticRegressionModel.scala
              • NaiveBayesModel.scala
              • external
                • GaussianMixtureModelEstimator.scala
              • ApproximatePCA.scala
              • KernelMatrix.scala
              • KernelRidgeRegression.scala
              • internal
                • ReWeightedLeastSquares.scala
              • KernelGenerator.scala
              • GaussianMixtureModelEstimator.scala
              • LeastSquaresEstimator.scala
              • BlockWeightedLeastSquares.scala
              • KMeansPlusPlus.scala
              • BlockLinearMapper.scala
              • PerClassWeightedLeastSquares.scala
            • stats
              • NormalizeRows.scala
              • PaddedFFT.scala
              • RandomSignNode.scala
              • TermFrequency.scala
              • SignedHellingerMapper.scala
              • LinearRectifier.scala
              • Sampling.scala
              • StandardScaler.scala
              • CosineRandomFeatures.scala
          • loaders
            • CifarLoader.scala
            • AmazonReviewsDataLoader.scala
            • TimitFeaturesDataLoader.scala
            • ImageNetLoader.scala
            • NewsgroupsDataLoader.scala
            • LabeledData.scala
            • VOCLoader.scala
            • ImageLoaderUtils.scala
            • CsvDataLoader.scala
    • test
      • resources
        • bMatShuffled.csv
        • aMat-1class.csv
        • iris.data
        • images
          • voc_codebook
            • priors
            • variances.csv
            • means.csv
          • imagenet-test-labels
        • gmm_data.txt
        • aMatShuffled.csv
        • aMat.csv
        • bMat-1class.csv
        • bMat.csv
      • scala
        • keystoneml
          • utils
            • ImageUtilsSuite.scala
            • images
              • ImageSuite.scala
            • external
              • EncEvalSuite.scala
              • VLFeatSuite.scala
            • MatrixUtilsSuite.scala
            • MLlibUtilsSuite.scala
            • TestUtils.scala
          • workflow
            • AutocCacheRuleSuite.scala
            • PipelineContext.scala
            • NodeOptimizationRuleSuite.scala
            • AnalysisUtilsSuite.scala
            • GraphSuite.scala
            • EstimatorSuite.scala
            • PipelineSuite.scala
            • LabelEstimatorSuite.scala
            • OperatorSuite.scala
          • evaluation
            • BinaryClassifierEvaluatorSuite.scala
            • MulticlassClassifierEvaluatorSuite.scala
            • MeanAveragePrecisionSuite.scala
          • pipelines
            • nlp
              • StupidBackoffSuite.scala
          • nodes
            • nlp
              • HashingTFSuite.scala
              • NGramsHashingTFSuite.scala
              • NGramSuite.scala
              • StringUtilsSuite.scala
              • WordFrequencyEncoderSuite.scala
              • NGramIndexerSuite.scala
              • CoreNLPFeatureExtractorSuite.scala
            • images
              • LCSExtractorSuite.scala
              • DaisyExtractorSuite.scala
              • SIFTExtractorSuite.scala
              • PoolingSuite.scala
              • ConvolverSuite.scala
              • RandomPatcherSuite.scala
              • WindowingSuite.scala
              • HogExtractorSuite.scala
              • CenterCornerPatcherSuite.scala
              • ImageBenchMarkSuite.scala
            • util
              • VectorSplitterSuite.scala
              • ClassLabelIndicatorsSuite.scala
              • MaxClassifierSuite.scala
              • TopKClassifierSuite.scala
            • learning
              • LeastSquaresEstimatorSuite.scala
              • PCASuite.scala
              • LBFGSSuite.scala
              • ZCAWhiteningSuite.scala
              • LinearDiscriminantAnalysisSuite.scala
              • GaussianMixtureModelSuite.scala
              • KMeansPlusPlusSuite.scala
              • KernelModelSuite.scala
              • LogisticRegressionModelSuite.scala
              • NaiveBayesModelSuite.scala
              • BlockLinearMapperSuite.scala
              • BlockWeightedLeastSquaresSuite.scala
              • LinearMapperSuite.scala
            • misc
              • SparseFeatureVectorizerSuite.scala
              • TermFrequencySuite.scala
            • stats
              • CosineRandomFeaturesSuite.scala
              • LinearRectifierSuite.scala
              • RandomSignNodeSuite.scala
              • PaddedFFTSuite.scala
              • SignedHellingerMapperSuite.scala
              • StandardScalerSuite.scala
          • loaders
            • ImageNetLoaderSuite.scala
            • VOCLoaderSuite.scala
      • python
        • images
          • pyconv.py
  • EC2.md
  • CONTRIBUTORS.md
  • Makefile
  • examples
    • images
      • voc_sift_fisher.sh
      • mnist_random_fft.sh
      • cifar_random_patch.sh
    • text
      • newsgroups_ngrams_tfidf.sh
  • LICENSE
  • RELEASE.md
  • project
    • build.properties
    • plugins.sbt
  • sbt
    • sbt
  • README.md
  • scripts
    • constantEstimator.R
    • solver-comparisons-final.csv
  • bin
    • keystone-ec2.sh
    • run-main.sh
    • run-pipeline.sh
  • build.sbt
  • .gitignore

package keystoneml.nodes.stats

import breeze.linalg._
import org.scalatest.FunSuite
import org.scalatest.matchers.ShouldMatchers
import keystoneml.pipelines.Logging

class RandomSignNodeSuite extends FunSuite with Logging with ShouldMatchers {

  test("RandomSignNode") {
    val signs = DenseVector(1.0, -1.0, 1.0)
    val node = RandomSignNode(signs)
    val data: DenseVector[Double] = DenseVector(1.0, 2.0, 3.0)
    val result = node(data)
    Seq(result) should equal (Seq(DenseVector(1.0, -2.0, 3.0)))
  }

  test("RandomSignNode.create") {
    val node = RandomSignNode(1000)
    
    node.signs.foreach(elt => assert(elt == -1.0 || elt == 1.0))
  }
}