Recent Posts by Sherry LaMonica

Background With the release of Oracle R Distribution 3.6.1, we’ve rerun the R-Benchmark-25 script to highlight the current performance gains using dynamically linked Intel Math Kernel Library with Oracle R Distribution. Open source R's internal BLAS library was created when multi-core machines were uncommon. Hence by design, R is single-threaded and will only use one processor of a multi-core machine when doing calculations. Several parallel processing packages for R exist that...

Oracle R Distribution (ORD) version 3.6.1 is now released on Oracle Linux 7 yum and Open Source Software channels. This update, code named "Action of the Toes", is a maintenance release for the R-3.6.x series, and a major update to the R Language engine since the release of Oracle R Distribution 3.4.4.  This update brings new features, user-visible changes, and bug fixes. Highlights include: improvements to random number generation, an updated serialization format, support...

For users who want to connect to Oracle Autonomous Database (ADB) from an R client today, use the ROracle package. An ROracle client can easily be configured to create a database connection. To establish the connection, both an R and ROracle installation are required, along with the Oracle Database Client and an Oracle Wallet. Installation R and ROracle Either open source R or Oracle R Distribution can be used to establish a connection to ADB.  When installing open source R,...

Oracle R Distribution version 3.4.4 is now released on Oracle Linux 6 and Linux 7 yum channels. This update, code named "Someone to Lean On", is a maintenance release for the R-3.4.x series, but a major update to the R Language engine since the release of Oracle R Distribution 3.3.0. R Engine Updates The R-3.4.x series brings several major changes aimed at improving the performance of R programs. The Just-In-Time (JIT) byte-code compiler is now enabled by default. R will...

When installing R packages on Linux 6, a common issue is that the native GCC compiler is not sufficient for building C++ 2011 standard code.  In some cases, the R package developer will identify the C++11 requirement on the package's CRAN site or in the compilation log. Or, the build log may simply return errors indicating the C++11 support is not available:   cc1plus: error: unrecognized command line option "-std=c++11" To work around this issue, you can install and enable...

The R ecosystem offers numerous packages for performing data analysis. Currently, the CRAN package repository features over 14,000 available packages! A key benefit to using R is the endless support it gets from statisticians, developers, and data science experts around the world. The CRAN repository offers R packages in Linux source format, or as binaries for Windows and MacOS.  If you are installing R packages on another Operating System such as Solaris, you will need to...

When simultaneously learning a new tool and working toward a deliverable deadline, getting timely help with technical problems is critical. If you work with R/Oracle R Distribution, Oracle R Enterprise, or Oracle R Advanced Analytics for Hadoop and need to engage support resources, we recommend doing everything you can to expedite a solution to the problem you are facing. The following tips on working effectively with support will enable more efficient communication, leading...

One reason R has become so popular is the vast array of add-on packages available at the CRAN and Bioconductor repositories. R's package system along with the CRAN framework provides a process for authoring, documenting and distributing packages to millions of users.  However, users and administrators wanting to build packages requiring C++ on 64-bit Solaris SPARC systems often are unable to compile their packages using Oracle Developer Studio.   R uses $R_HOME/etc/Makeconf a...

After a database upgrade, a set of maintenance steps is required to update the new ORACLE_HOME with the entire set of ORE components.  For example, if the proper migration steps are not followed, ORE embedded R functions will return errors such as:   ORA-28578: protocol error during callback from an external procedure The ORE server installation consists of three components: Oracle Database schema (RQSYS) and schema-related objects. Oracle Database shared libraries for...