R Data Science Library Package

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R packages are modules that contain R functions and data sets. WarehousePG provides a collection of data science-related R libraries that can be used with the WarehousePG PL/R language.

This chapter contains the following information:

• R Data Science Libraries
• Installing the R Data Science Library Package
• Uninstalling the R Data Science Library Package

For information about the WarehousePG PL/R Language, see WarehousePG PL/R Language Extension.

Parent topic: Installing Optional Extensions (WarehousePG)

R Data Science Libraries

Libraries provided in the R Data Science package include:

abind adabag arm assertthat backports BH bitops car caret caTools cli clipr coda colorspace compHclust crayon curl data.table DBI Deriv dichromat digest doParallel dplyr e1071 ellipsis fansi fastICA fBasics fGarch flashClust foreach forecast foreign fracdiff gdata generics ggplot2 glmnet glue	gower gplots gss gtable gtools hms hybridHclust igraph ipred iterators labeling lattice lava lazyeval lme4 lmtest lubridate magrittr MASS Matrix MatrixModels mcmc MCMCpack minqa ModelMetrics MTS munsell mvtnorm neuralnet nloptr nnet numDeriv pbkrtest pillar pkgconfig plogr plyr prodlim purrr quadprog	quantmod quantreg R2WinBUGS R6 randomForest RColorBrewer Rcpp RcppArmadillo RcppEigen readr recipes reshape2 rlang RobustRankAggreg ROCR rpart RPostgreSQL sandwich scales SparseM SQUAREM stabledist stringi stringr survival tibble tidyr tidyselect timeDate timeSeries tseries TTR urca utf8 vctrs viridisLite withr xts zeallot zoo

Installing the R Data Science Library Package

Before you install the R Data Science Library package, make sure that your WarehousePG is running, you have sourced greenplum_path.sh, and that the COORDINATOR_DATA_DIRECTORY and $GPHOME environment variables are set.

1. Locate the R Data Science library package that you built or downloaded.

2. Copy the package to the WarehousePG coordinator host.

3. Install the package.

4. Restart WarehousePG. You must re-source greenplum_path.sh before restarting your WarehousePG cluster:

   $ source /usr/local/greenplum-db/greenplum_path.sh
   $ gpstop -r

The WarehousePG R Data Science Modules are installed in the following directory:

$GPHOME/ext/DataScienceR/library

Note When you uninstall the R Data Science Library package from your WarehousePG cluster, any UDFs that you have created that use R libraries installed with this package will return an error.