apache / mahoutConditional Complexity

Intro

Conditional complexity (also called cyclomatic complexity) is a term used to measure the complexity of software. The term refers to the number of possible paths through a program function. A higher value ofter means higher maintenance and testing costs (infosecinstitute.com).
Conditional complexity is calculated by counting all conditions in the program that can affect the execution path (e.g. if statement, loops, switches, and/or operators, try and catch blocks...).
Conditional complexity is measured at the unit level (methods, functions...).
Units are classified in four categories based on the measured McCabe index: 1-5 (simple units), 6-10 (medium complex units), 11-25 (complex units), 26+ (very complex units).

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Conditional Complexity Overall

There are 7,201 units with 68,100 lines of code in units (67.1% of code).

5 very complex units (896 lines of code)
8 complex units (1,258 lines of code)
129 medium complex units (7,857 lines of code)
333 simple units (11,187 lines of code)
6,726 very simple units (46,902 lines of code)

Legend:

51+

26-50

11-25

6-10

1-5

Alternative Visuals

3D view of all units

Conditional Complexity per Extension

51+

26-50

11-25

6-10

1-5

Conditional Complexity per Logical Component

primary logical decomposition

51+

26-50

11-25

6-10

1-5

Most Complex Units

Top 50 most complex units

Unit	# lines	McCabe index	# params
public SingularValueDecomposition() in core/src/main/java/org/apache/mahout/math/SingularValueDecomposition.java	357	102	1
private void hqr2() in core/src/main/java/org/apache/mahout/math/solver/EigenDecomposition.java	337	68	1
override def apply() in experimental/viennacl-omp/src/main/scala/org/apache/mahout/viennacl/openmp/OMPMMul.scala	70	54	3
override def apply() in experimental/viennacl/src/main/scala/org/apache/mahout/viennacl/opencl/GPUMMul.scala	70	54	3
override def apply() in core/src/main/scala/org/apache/mahout/math/scalabindings/MMul.scala	62	52	3
public Node build() in community/mahout-mr/mr/src/main/java/org/apache/mahout/classifier/df/builder/DecisionTreeBuilder.java	165	43	2
public int run() in community/mahout-mr/integration/src/main/java/org/apache/mahout/utils/vectors/VectorDumper.java	179	40	1
public int nextInt() in core/src/main/java/org/apache/mahout/math/jet/random/Poisson.java	147	35	1
public static void main() in community/mahout-mr/mr/src/main/java/org/apache/mahout/driver/MahoutDriver.java	95	35	1
public int run() in community/mahout-mr/mr/src/main/java/org/apache/mahout/vectorizer/SparseVectorsFromSequenceFiles.java	262	31	1
protected void processLine() in community/mahout-mr/mr/src/main/java/org/apache/mahout/cf/taste/impl/model/file/FileDataModel.java	116	31	4
public Vector solve() in core/src/main/java/org/apache/mahout/math/solver/LSMR.java	172	30	2
public void splitFile() in community/mahout-mr/integration/src/main/java/org/apache/mahout/utils/SplitInput.java	122	28	1
public double nextDouble() in core/src/main/java/org/apache/mahout/math/jet/random/Gamma.java	145	25	2
private def pass1[K]() in core/src/main/scala/org/apache/mahout/math/drm/DistributedEngine.scala	37	25	1
private def flinkTranslate[K]() in community/community-engines/flink-batch/src/main/scala/org/apache/mahout/flinkbindings/FlinkEngine.scala	49	25	1
private def tr2phys[K]() in engine/spark/src/main/scala/org/apache/mahout/sparkbindings/SparkEngine.scala	33	25	1
public void run() in community/mahout-mr/mr/src/main/java/org/apache/mahout/math/hadoop/stochasticsvd/SSVDSolver.java	237	23	0
private boolean parseArgs() in community/mahout-mr/integration/src/main/java/org/apache/mahout/utils/SplitInput.java	96	23	1
private static void quickSort0() in core/src/main/java/org/apache/mahout/math/Sorting.java	85	22	4
public int run() in community/mahout-mr/integration/src/main/java/org/apache/mahout/utils/SequenceFileDumper.java	106	22	1
public static double incompleteBeta() in core/src/main/java/org/apache/mahout/math/jet/stat/Gamma.java	64	21	3
private static void quickSort0() in core/src/main/java/org/apache/mahout/math/Sorting.java	79	21	4
private static void quickSort0() in core/src/main/java/org/apache/mahout/math/Sorting.java	79	21	4
private static void quickSort0() in core/src/main/java/org/apache/mahout/math/Sorting.java	79	21	4
private static void quickSort0() in core/src/main/java/org/apache/mahout/math/Sorting.java	79	21	4
private static void quickSort0() in core/src/main/java/org/apache/mahout/math/Sorting.java	79	21	4
private static void quickSort0() in core/src/main/java/org/apache/mahout/math/Sorting.java	79	21	4
public int run() in community/mahout-mr/mr/src/main/java/org/apache/mahout/cf/taste/hadoop/item/RecommenderJob.java	169	21	1
public int run() in community/mahout-mr/mr/src/main/java/org/apache/mahout/clustering/lda/cvb/CVB0Driver.java	112	21	20
protected void cleanup() in community/mahout-mr/mr/src/main/java/org/apache/mahout/math/hadoop/stochasticsvd/ABtDenseOutJob.java	83	21	1
def drmParallelizeEmpty() in community/community-engines/h2o/src/main/scala/org/apache/mahout/h2obindings/H2OEngine.scala	37	21	3
private void tred2() in core/src/main/java/org/apache/mahout/math/solver/EigenDecomposition.java	86	20	0
private static void quickSort0() in core/src/main/java/org/apache/mahout/math/Sorting.java	79	20	4
private static void quickSort0() in core/src/main/java/org/apache/mahout/math/Sorting.java	79	20	4
override def write() in core/src/main/scala/org/apache/mahout/common/io/VectorKryoSerializer.scala	69	20	3
public TelephoneCall() in community/mahout-mr/mr-examples/src/main/java/org/apache/mahout/classifier/sgd/bankmarketing/TelephoneCall.java	55	20	2
public int run() in community/mahout-mr/mr/src/main/java/org/apache/mahout/math/hadoop/stochasticsvd/SSVDCli.java	136	20	1
public static H2ODrm drmFromSeqfile() in community/community-engines/h2o/src/main/java/org/apache/mahout/h2obindings/H2OHdfs.java	91	20	2
override def read() in core/src/main/scala/org/apache/mahout/common/io/VectorKryoSerializer.scala	75	19	3
public double userSimilarity() in community/mahout-mr/mr/src/main/java/org/apache/mahout/cf/taste/impl/similarity/AbstractSimilarity.java	92	19	2
public IRStatistics evaluate() in community/mahout-mr/mr/src/main/java/org/apache/mahout/cf/taste/impl/eval/GenericRecommenderIRStatsEvaluator.java	98	19	7
public ARFFVectorIterable() in community/mahout-mr/integration/src/main/java/org/apache/mahout/utils/vectors/arff/ARFFVectorIterable.java	61	18	2
static long sort() in community/mahout-mr/mr/src/main/java/org/apache/mahout/cf/taste/impl/eval/OrderBasedRecommenderEvaluator.java	44	17	2
static void viterbiAlgorithm() in community/mahout-mr/mr/src/main/java/org/apache/mahout/classifier/sequencelearning/hmm/HmmAlgorithms.java	63	17	6
public void validate() in community/mahout-mr/integration/src/main/java/org/apache/mahout/utils/SplitInput.java	39	17	0
private static void rejectMethodD() in core/src/main/java/org/apache/mahout/math/jet/random/sampling/RandomSampler.java	86	16	7
static void mainToOutput() in community/mahout-mr/mr-examples/src/main/java/org/apache/mahout/classifier/sgd/TrainAdaptiveLogistic.java	73	16	2
public Node build() in community/mahout-mr/mr/src/main/java/org/apache/mahout/classifier/df/builder/DefaultTreeBuilder.java	61	16	2
public long parseMboxLineByLine() in community/mahout-mr/integration/src/main/java/org/apache/mahout/utils/email/MailProcessor.java	66	16	1