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Questions tagged [revolution-r]

Revolution R is production-grade analytics software built upon the powerful open source R statistics language.

84 questions
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random selection on XDF

I have tried a lot of alternatives, including the one we can find on Revo website xform <- function(data) { data$.rxRowSelection <- as.logical(rbinom(nr, 1 , 0.5)) return(data) } rxDataStep(inData = "two_vars.xdf", outFile = "testSample", …
Ouriel
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Assigning rownames to DataFrames using DeployR in C#

I am using DeployR library to interface with R from C# .Net. I am currently in the process of implementing DataFrames. I could create DataFrames with rows being numbered as 1,2,3.., but my requirement is to provide names to rows as it is supported…
Shiras
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Passing user name as variable and returning the results of r script using deployR

Consider a r script implementing a simple function which returns histogram plot from dataframe in r consisting of three columns say username, monthname and monthly salary. Now how to integrate to deployR where a simple http call can pass the…
Hari Prasad
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Revolution R: installation on debian jessie

I need to install Revolution R on a Debian Jessie (version 8, 64-bit). On my system there is already installed R 3.1.1 and Rstudio. The Revolution download page give me three installation package for Ubuntu: 12, 14, 15 (older LTS, current LTS,…
Alessandro Trinca Tornidor
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SVD package installation failure after using Revolution R

I have recently installed Revolution R (3.2.1). Now, when I am trying to install the svd package from source but I see the following error message. > install.packages('svd',type='source') Installing package into…
Ghosh
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Do you have to escape back slashes or do any special encoding with Rs Digest function within the Alteryx R tool

I'm using the Alteryx R tool to do some sha256 hash calculations, but I'm running into trouble with one of my inputs. I'm trying to produce the sha256 hash for the following…
Mutuelinvestor
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Revo Scale R rxCube and other open source parallel package?

I have a 72 million observation data frame. It has two columns, my_id and my_rand variables. The data frame has about 6 million unique my_id. I need to calculate average my_rank value by my_id (group by my_id). I tried to run the above regular R…
Eric_IL
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Creating a new column with constant value in .Xdf file using rxDataStep

Could any one tell me how to create a new column having constant value in .Xdf file without taking data into dataframe. I have a date type global variable named mod_run_date having value as "2014-05-01" . I want to create a new column…
Amit Mishra
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Suppressing comma inside double quotes while reading CSV file into .Xdf file Using rxImport function

I am trying to convert a large .CSV file into an .Xdf file by using the rxImport() function with the below code: rxImport(inData = "/poc/revor/data/ext_roll36_chrg_vol.csv", outFile = "/poc/revor/data/ext_roll36_chrg_vol.xdf", …
Amit Mishra
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Error in rxCall("RxMergeXdf", params)

I am trying to merge two .Xdf file, below is the code for the same: rxMergeXdf(inFile1 = "/poc/revor/data/se_lif_1.xdf", inFile2 = "/poc/revor/data/ext_merchant_account_filtered.xdf", outFile = "/poc/revor/data/se_lif_2.xdf", matchVars =…
Amit Mishra
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No data was written in output source : rxDataStepXdf function

I have executed below code for selecting rows & column from a .xdf file & creating a new .xdf file but its not working. Below is the code & message shown after execution: S_date <- as.Date("2014-05-01") rxDataStepXdf(inFile =…
Amit Mishra
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Removing duplicate records from .Xdf file

I would like to remove the duplicate records from my large .xdf file trans.xdf. Here is the file details: File name: /poc/revor/data/trans.xdf Number of observations: 1000000000 Number of variables: 5 Number of blocks: 40 Compression type:…
Amit Mishra
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Revolution R: filter an xdf using another xdf

I'm trying to filter a very large xdf file (sitting on cloudera) using in to compare it to another xdf file (sitting on cloudera). If I try: rxDataStep(inData = largeXdf, outFile = largeXdf, overwrite = TRUE, transformObjects =…
Laura
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Referencing variable value as a column for the rowSelection argument in the rxDataStepXdf function

I have assigned a variable to take the column name of the dataset, say: column_name <- "run_type" Using the rxDataStepXdf function, i would like to filter my dataset to select only rows where run_type = "Prime"…
Ruser
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rxCrossTabs crashes on a character variable

When I run this in Revolution R Enterprise, it totally crashes Rstudio on the last line: require(RevoScaleR) set.seed(1) a = sample(c("happy", "sad", "other", NA), 100, replace = TRUE) y = data.frame(a) y$a = as.character(y$a) rxCrossTabs(1 ~ a,…
zkurtz
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