Github user HyukjinKwon commented on a diff in the pull request: https://github.com/apache/spark/pull/23072#discussion_r239701069 --- Diff: R/pkg/vignettes/sparkr-vignettes.Rmd --- @@ -968,6 +970,17 @@ predicted <- predict(model, df) head(predicted) ``` +#### Power Iteration Clustering + +Power Iteration Clustering (PIC) is a scalable graph clustering algorithm. `spark.assignClusters` method runs the PIC algorithm and returns a cluster assignment for each input vertex. + +```{r} +df <- createDataFrame(list(list(0L, 1L, 1.0), list(0L, 2L, 1.0), + list(1L, 2L, 1.0), list(3L, 4L, 1.0), --- End diff -- There are two separate style are already mixed in R code IIRC: ```r df <- createDataFrame( list(list(0L, 1L, 1.0), list(0L, 2L, 1.0), list(1L, 2L, 1.0), list(3L, 4L, 1.0), list(4L, 0L, 0.1)), schema = c("src", "dst", "weight")) ``` or ```r df <- createDataFrame(list(list(0L, 1L, 1.0), list(0L, 2L, 1.0), list(1L, 2L, 1.0), list(3L, 4L, 1.0), list(4L, 0L, 0.1)), schema = c("src", "dst", "weight")) ``` Let's avoid mixed style, and let's go for the later one when possible because at least that looks more complying the code style.
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