search for: gdsayshi

Displaying 5 results from an estimated 5 matches for "gdsayshi".

2013 Jan 16
1
How to call Java main method using rJava package?
Hi, I am trying to integrate my Java program with R using rJava package. I want to execute the whole Java program from R. The main() method in my Java code calls all the other defined methods. So, I guess I have to call the main() method in .jcall. An example Java code: *class A { public static int mySum(int x, int y) { return x+y; } public static void
2013 Oct 09
1
How to write R data frame to HDFS using rhdfs?
Hello, I am trying to write the default "OrchardSprays" R data frame into HDFS using the "rhdfs" package. I want to write this data frame directly into HDFS without first storing it into any file in local file system. Which rhdfs command i should use? Can some one help me? I am very new to R and rhdfs. Regards, Gaurav [[alternative HTML version deleted]]
2013 Oct 09
0
How to write R data frame to HDFS using rhdfs?
Hello, I am trying to write the default "OrchardSprays" R data frame into HDFS using the "rhdfs" package. I want to write this data frame directly into HDFS without first storing it into any file in local file system. Which rhdfs command i should use? Can some one help me? I am very new to R and rhdfs. Regards, Gaurav [[alternative HTML version deleted]]
2013 Sep 23
0
Unable to execute Java MapReduce (Hadoop) code from R using rJava
Hi All, I have written a Java MapReduce code that runs on Hadoop. My intention is to create an R package which will call the Java code and execute the job. Hence, I have written a similar R function. But when I call this function from R terminal, the Hadoop job is not running. Its just printing few lines of warning messages and does nothing further. Here is the execution scenario: *>
2013 Feb 08
1
ClassNotFoundException when running distributed job using rJava package
Hi, I have a MapReduce Java code, which I am calling from R using rJava. I have prepared the R package and tested that successfully. But when I deployed the package in a cluster and executed it, I am getting ClassNotFoundException. If I run the same job directly without integrating with R, it runs perfectly. Here is my R code: library(rJava) muMstSpark <- function(mesosMaster = NULL, input =