Decision tree learning algorithm for classification
# Decision tree learning algorithm for classification
from pyspark.ml.linalg import Vectors
from pyspark.ml.feature import StringIndexer
df = spark.createDataFrame([
(1.0, Vectors.dense(1.0)),
(0.0, Vectors.sparse(1, [], []))], ["label", "features"])
stringIndexer = StringIndexer(inputCol="label", outputCol="indexed")
si_model = stringIndexer.fit(df)
td = si_model.transform(df)
dt = DecisionTreeClassifier(maxDepth=2, labelCol="indexed")
model = dt.fit(td)
model.numNodes
# 3
model.depth
# 1
model.featuresImportances
# SparseVector(1, {0: 1.0})
model.numFeatures
# 1
model.numClasses
# 2
print(model.toDebugString)
# DecisionTreeClassificationModel (uid=...) of depth 1 with 3 nodes...
test0 = spark.createDataFrame([(Vectors.dense(-1.0),)], ["features"])
result = model.transform(test0).head()
result.prediction
# 0.0
result.probability
# DenseVectors([1.0, 0.0])
result.rawPrediction
# DenseVector([1.0, 0.0])
test1 = spark.createDataFrame([Vectors.sparse(1, [0], [1.0]),)], ["features"])
model.transform(test1).head().prediction
# 1.0
dtc_path = temp_path + "/dtc"
dt.save(dtc_path)
dt2 = DecisionTreeClassifier.load(dtc_path)
dt2.getMaxDepth()
# 2
model_path = temp_path + "/dtc_model"
model.save(model_path)
model2 = DecisionTreeClassificationModel.load(model_path)
model.featureImportances == model2.featureImportances
# TrueAre there any code examples left?
New code examples in category Python
Relative searches
decision trees used for classification
decision tree machine learning algorithm in python
decision tree algorithm in machine learning python
decision tree algorithm machine learning
regression tree and classification tree
is decision tree a classification or regression algorithm
decision tree is classification or regression
is decision tree used for classification
decision tree algorithm classification
use of decision tree in machine learning
decision tree in classification example
decision tree learning in machine learning
decision tree classification on basis of decision tree example
major steps of decision tree classification
what is a decision tree classification
decision tree machine learning explained
is decision tree a machine learning algorithm
is decision tree classification
classification algorithm using a decision tree
when we use decision tree in machine learning
Decision trees classification and prediction
Decision trees applies to classification and prediction
decision tree classification and regression
decision tree for classification python
what is decision tree classification
decision trees machine learning example
does classification use decision tree
decision tree can be used for classification and regression
decision tree classification algorith
decision tree classification algorithm
classification using decision tree source code
Decision Tree Based Classification
decision tree machine learning examples
what is decision tree classifier learning
decision classification tree
decision tree learning algorithm python information gain
what is decision tree classifier in machine learning
decision tree classification definition
classification decision tree uses
decision tree methods: applications for classification and prediction
def decision tree learning algorithm
def decision_tree_learning algorithm
decision tree algorithm in machine learning code example
how decision tree works for classification
how decision tree is used for classification
decision tree ml classification
decision tree algorithm on a numerical example
The decision tree learning algorithm
example classification using decision tree
Classification decision tree algorithms are used for
implementation of decision tree algorithm in machine learning
can decision tree be used for classification
classification tree based classification
what is classification what are various decision making trees
classification tree
what is decision tree algorithm in machine learning
decision trees machine learning
decision trees in machine learning
decision tree in machine learning
decision tree for classification code
decision tree machine learning coding
decision tree algorithms in machine learning
classification in decision tree '
Classification Decision Tree
What is decision tree classification?
basic decision tree learning algorithm
decision tree classification tree
decision trees classification
decision tree machine learning algorithm
Learn decision tree algorithm machine learning
decision tree for classification
decision tree classification explained
decision tree classification example
decision tree classification machine learning
classification using decision tree
decision tree for machine learning model
decision tree learning algorithm
classification decision tree sklearn
classification decision trees
decision tree machine learning example
Decision tree based on
Decision Tree Classifier explained
Decision tree learning medium
Decision tree learning
decision tree algorithm works well when the target function is boolean
decision tree classification
decision tree problem in machine learning
construct a decision tree considering s1 to s6 instance
Decision Trees fall into which of the following categories of machine learning techniques?
decision tree with example problem in machine learning
decision tree with example in machine learning
decision tree
what is decision tree machine learning
and/or split tree
machine learning decision tree
decision tree classifier in machine learning
decison tree
construct a decision tree with root node Type from the data inthe table below
decision tree algorithm in machine learning
decision tree base classifier
decision tree algorithm in machine learning example
suppose S is a collection of 10 examples of some boolean concept, including 5 positive and 5 negative examples what is the entropy
decision tree tutorial
Decision trees are an example of unsupervised learning
decision tree machine learning problems new values
decision tree in ml
decision tree created using the 12 examples
decision tree generating the 12 examples and the decision tree created using the 12 examples are different.
decision tree machine learning
machine learning decision trees tutorial
Decision tree learning algorithm for classification
