Category Archives: Data Analysis

R Packages available for CRMDA cluster members

To use R, here is a set of commands I run to set the environment. This is necessary every time I want to use Emacs and R. Lets call this the magic 5 line stanza, for sake of discussion. module … Continue reading

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Revolutions R in new acf cluster

The cluster runs on RedHat RHEL 6, which is too old to support the new versions of R. The principal weakness is the older gcc compiler in RHEL6. In the cluster, however, we have access to much newer Intel MKL … Continue reading

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Making sure fonts are embedded in LaTeX thesis and dissertation documents

KU thesis rules require that all fonts used in the submitted PDF document must be embedded in the document itself. This is required to eliminate the problem that special symbols are not legible in the document on the receiver's computer. … Continue reading

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Interactive sessions on HPC

Danger: new smaller memory default! At the user meeting on April 12, we found out that requesting 1 core will automatically provide only 500MB of memory. This is a BIG change, because in older cluster we received 2GB per core … Continue reading

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Cluster user update

We will have a cluster update meeting on Friday at 10AM in Watson Room 440D (within the suite of the Digital Humanities group). Today the Center for Research Computing announced the re-opening of the compute cluster. A number of features … Continue reading

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Long-running Mplus Bootstrapping Example

In the high performance computing example archive, we've just inserted Example 05, a long-running multi-core Mplus exercise. https://gitlab.crmda.ku.edu/crmda/hpcexample/tree/master/Ex05-Mplus-1 This one demonstrates how I suggest we ought to keep the data, code files, and output files in separate folders, even if … Continue reading

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Text Analysis with R

We are having a little practice session. Quick notes about working through the examples in Matthew L. Jockers fine book, Text Analysis with R for Students of Literature. Browse here: http://www.matthewjockers.net/text-analysis-with-r-for-students-of-literature and download the zip file that it points at … Continue reading

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Portable Parallel Seeds for R (and other cluster updates)

We've been reworking the high performance computing examples so that they line up with the latest and greatest advice about how to organize submissions on the ACF cluster computing system. Please update your copy of the hpcexample archive (see http://crmda.ku.edu/parallel-programs). … Continue reading

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Do not let this happen to your survey project

Bring in your survey, let us take a look! Perhaps one of our GRAs can save you from this ignominious fate. We have open (free) walk-in consulting. Find out more on the Open Consulting Page

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