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examples/src/main/r/ml/als.R
47 строк
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Felix Cheung
[SPARKR][EXAMPLES] update examples to stop spark session
18 фев 2017, 00:30
18 фев 2017, 00:30
988f6d7
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# # 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 licenses this file to You under the Apache License, Version 2.0 # (the "License"); you may not use this file except in compliance with # the License. You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. # # To run this example use # ./bin/spark-submit examples/src/main/r/ml/als.R # Load SparkR library into your R session library(SparkR) # Initialize SparkSession sparkR.session(appName = "SparkR-ML-als-example") # $example on$ # Load training data data <- list(list(0, 0, 4.0), list(0, 1, 2.0), list(1, 1, 3.0), list(1, 2, 4.0), list(2, 1, 1.0), list(2, 2, 5.0)) df <- createDataFrame(data, c("userId", "movieId", "rating")) training <- df test <- df # Fit a recommendation model using ALS with spark.als model <- spark.als(training, maxIter = 5, regParam = 0.01, userCol = "userId", itemCol = "movieId", ratingCol = "rating") # Model summary summary(model) # Prediction predictions <- predict(model, test) head(predictions) # $example off$ sparkR.session.stop()