Load csv file: df <- read.df(sqlContext, "file-path", source = "com.databricks.spark.csv", header = "true") Calculate covariance: cov <- cov(df, "col1", "col2")
Cheers Yanbo 2015-12-28 17:21 GMT+08:00 zhangjp <592426...@qq.com>: > hi all, > I want to use sparkR or spark MLlib load csv file on hdfs then > calculate covariance, how to do it . > thks. >
