spark pipeline 例子

【spark pipeline 例子】的更多相关文章

""" Pipeline Example. """ # $example on$ from pyspark.ml import Pipeline from pyspark.ml.classification import LogisticRegression from pyspark.ml.feature import HashingTF, Tokenizer # $example off$ from pyspark.sql import Spa…

spark JavaDirectKafkaWordCount 例子分析

spark JavaDirectKafkaWordCount 例子分析: 1. KafkaUtils.createDirectStream( jssc, String.class, String.class, StringDecoder.class, StringDecoder.class, kafkaParams, topicsSet );后面参数意思: 源码是这样 @param ssc StreamingContext object * @param kafkaParams Kafka <…

Spark Pipeline官方文档

ML Pipelines(译文) 官方文档链接:https://spark.apache.org/docs/latest/ml-pipeline.html 概述在这一部分,我们将要介绍ML Pipelines,它提供了基于DataFrame上统一的高等级API,可以帮助使用者创建和调试机器学习工作流: 目录: Pipelines中主要的概念: DataFrame Pipeline组件 Transformers:转换器 Estimators:预测器 Pipelines组件属性 Pipeline…

Spark SQL例子

综合案例分析现有数据集 department.json与employee.json,以部门名称和员工性别为粒度,试计算每个部门分性别平均年龄与平均薪资. department.json如下: {"id":1,"name":"Tech Department"} {"id":2,"name":"Fina Department"} {"id":3,"name&q…

Spark Pipeline

一个简单的Pipeline,用作estimator.Pipeline由有序列的stages组成,每个stage是一个Estimator或者一个Transformer. 当Pipeline调用fit,stages按顺序被执行.如果一个stage是一个Estimator,将调用Estimator的fit方法,使用“输入dataset”来拟合一个模型. 然后,作为transformer的model将dataset变换为下一个stage的输入. 如果一个stage是Transformer,调用Trans…

Spark Streaming 例子

NetworkWordCount.scala /* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF lice…

看到了一个pipeline例子，

pipeline { agent any options { timestamps() } parameters { string(name: 'GIT_BRANCH', defaultValue: 'master', description: 'default build branch') booleanParam(name: 'RUN_SONAR_SCANNER', defaultValue: true, description: 'run the sonar scanner check.'…