## Research Computing

Mathematical and Statistical Application – SAS – Using SAS/INSIGHT for interactive data analysis

**Description:** Introduction Though the SAS System is a powerful tool for organizing, managing, and analyzing data, the conventional approach to using SAS limits your ability to interact directly with your data. Similarly, the command language for SAS/GRAPH is a powerful tool for visual output but is too complex and produces only static plots. SAS/INSIGHT changes all […]

**» Subjects:** Research Computing, SAS
**» Tags:** sas, statistical computing

Mathematical and Statistical Application – R – Install R Packages on the Research Computing Server

**Description:** Table of Contents Overview Install R packages on the scratch space Load R packages installed on the scratch space Additional help Overview These instructions will help users install R packages (also called libraries) to the Unix/Linux version of R on Research Computing server. These instructions require a little knowledge of Unix/Linux commands. On the […]

**» Subjects:** Math and Stat Applications, Research Computing
**» Tags:** install, libraries, packages, R, research computing, statistical computing

Visualization Application – Grace

**Description:** Overview Grace is a WYSIWYG 2D plotting tool for the X Window System and M*tif. Grace runs on practically any version of UNIX/Linux. Grace is a descendant of ACE/gr, also known as Xmgr. General: WYSIWYG design, convenient point-and-click graphical user interface, precise control of graph features, true publication quality graphs that refresh almost instantly. Export […]

**» Subjects:** Math and Stat Applications, Research Computing
**» Tags:** Grace, research computing services, visualization

Research Computing Database Services

**Description:** Oracle Database Services ITS Research Computing provides an Oracle database server and professional database administration services for research projects at UNC-Chapel Hill. Development, test and production instances of databases can be supported. The ITS Research Computing database administrator applies updates and patches to the Oracle environment on at least a quarterly basis, ensuring that your […]

**» Subjects:** Research Computing

Scientific Application – PLINK

**Description:** Overview PLINK is a free, open-source whole genome association analysis toolset, designed to perform a range of basic, large-scale analyses in a computationally efficient manner. The focus of PLINK is purely an analysis of genotype/phenotype data, so there is no support for steps prior to this. Through integration with gPLINK and Haploview, there is some […]

**» Subjects:** Research Computing, Scientific Applications
**» Tags:** genetics, research computing services

Computing with the GPU nodes on Killdevil

**Description:** Table of Contents Accessing the nodes and the CUDA environment Configuration Tools Additional Resources Accessing the nodes and the CUDA environment To set up the CUDA environment make sure you load the CUDA module. Use the module avail command to see the currently available modules. For example to load the CUDA 4.2 environment module add […]

**» Subjects:** Research Computing
**» Tags:** GPGPU, GPU, graphics processing unit, killdevil, Nvidia, research computing

Invoking Cambridge Structural Database on Killdevil via Windows Desktop with X-Win32

**Description:** Setting up the Environment and Invoking Cambridge Structural Database on KillDevil via Windows Desktop with X-Win32 Note: You must be a “tcsh” or “csh” user to benefit from the full functionality of this package. Before accessing Cambridge Structural Database from Windows machines, the following steps should be done. If you have already setup for […]

**» Subjects:** Research Computing, SAS
**» Tags:** Cambridge, Crystallographic Database, crystallography

Mathematical and Statistical Application – Mathematica – Tutorial

**Description:** Table of Contents What is Mathematica? The Mathematica Windows Numerical Calculation Notes Building Up Calculations Algebraic Calculations Calculus Statistics Matrices Graphics End Comments Additional help What is Mathematica? According to Wolfram Research, the vendor of this software, Mathematica is the world’s only fully integrated environment for technical computing. It handles a wide variety of numerical, […]

**» Subjects:** Math and Stat Applications, Research Computing
**» Tags:** analyze, calculate, data analysis, math, mathematica, statistical computing, Statistics, tutorial

Scientific Application – Sybyl

**Description:** Overview Note: You must be a “tcsh” or “csh” user to benefit from the full functionality of this package. Sybyl provides the front end for comprehensive tools for molecular modeling such as structure building, optimization, visualization of structures and associated data. Additional modules of Sybyl can be added to basis Sybyl to enhance its capability. […]

**» Subjects:** Research Computing, Scientific Applications
**» Tags:** research computing services, sybyl

Research Computing – What is X11 forwarding?

**Description:** X11 is the X Window System which allows you to run software on a UNIX/Linux server in a Windows-like way such that you can use your mouse to click around in it. The secure way to do this is to forward your X11 packets through your ssh conection which automatically sets your DISPLAY environment variable […]

**» Subjects:** Research Computing
**» Tags:** research computing, X-Win32, X-Windows, X11