Category Archives: Data Analysis

GRA positions open beginning Summer, 2018

We have 2 GRA positions for 2018-2019 available now. Please consider applying: http://crmda.ku.edu/gra

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stationery package for R in testing

The R package "stationery" offers themes and templates for 8 document types. It offers working examples of documents that use R markdown and LaTeX/Sweave and LaTeX/knitr to prepare guides, slides, and reports. The 8 document types are HTML webpages prepared … Continue reading

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Using too many files in your cluster account? What to do!

After the cluster restart yesterday, I got this message indicating I'm over the limit on the number of files allowed in a home account. Previously I was allowed 100,000, now it appears that is lowered to 85,000. Oh, well. The … Continue reading

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New update of kutils package for R available

I have uploaded kutils-1.31 on KRAN. To try it, fix your repositories like so: CRAN <- "http://rweb.crmda.ku.edu/cran" KRAN <- "http://rweb.crmda.ku.edu/kran" options(repos = c(KRAN, CRAN)) If you have kutils already, then fire away with an update: update.packages(ask = FALSE, checkBuilt = … Continue reading

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kutils package update: more powerful SEM table maker

I have uploaded kutils-1.25, a beta testing version on KRAN. If your computer is not set to automatically pull updates from KRAN already, run this: CRAN <- "http://rweb.crmda.ku.edu/cran" KRAN <- "http://rweb.crmda.ku.edu/kran" options(repos = c(KRAN, CRAN)) update.packages(ask = FALSE, checkBuilt = … Continue reading

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Rstats/3.3 and Rstats/3.4 updates: dealing with OpenMPI and Infiniband library concerns.

Dear CRMDA cluster users During the past 2 months, some of us have seen the MPI warning from parallel R programs: An MPI process has executed an operation involving a call to the "fork()" system call to create a child … Continue reading

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kutils update

kutils, our utility package that includes the Variable Key framework, was updated to version 1.0 on CRAN last week. Minor bug fixes will be offered in our package server KRAN, which users can access by running R code like this … Continue reading

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Cluster faster, Rstan optimized as of 2017-05-17

Special thanks to Wes Mason of the ITTC. There are 2 breakthroughs to report today. Nodes are faster During the spring, users reported that calculations were taking longer. I raised the problem with Wes and he did some diagnosis. It … Continue reading

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Apply for our Student Hourly Position

The link for students to apply is: https://employment.ku.edu/student/8685BR The last day students can apply is May 23, 2017, and committee members can review candidates by logging into the BrassRing system on or after May 24, 2017.

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R Packages available for CRMDA cluster members

This is the 20170425 update, which includes an updated module set and reports of success with Java and TkTcl-based R packages. In other words, an almost complete victory is achieved. Special thanks to Wes Mason of ITTC. To use R, … Continue reading

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