examples/src/main/r/ml/prefixSpan.R

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# To run this example use
# ./bin/spark-submit examples/src/main/r/ml/prefixSpan.R

# Load SparkR library into your R session
library(SparkR)

# Initialize SparkSession
sparkR.session(appName = "SparkR-ML-prefixSpan-example")

# $example on$
# Load training data

df <- createDataFrame(list(list(list(list(1L, 2L), list(3L))),
                           list(list(list(1L), list(3L, 2L), list(1L, 2L))),
                           list(list(list(1L, 2L), list(5L))),
                           list(list(list(6L)))),
                      schema = c("sequence"))

# Finding frequent sequential patterns
frequency <- spark.findFrequentSequentialPatterns(df, minSupport = 0.5, maxPatternLength = 5L,
                                                  maxLocalProjDBSize = 32000000L)
showDF(frequency)

# $example off$

sparkR.session.stop()