Blog Archives

RStudio is reminding me of the older Macs

April 15, 2013
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RStudio is reminding me of the older Macs

The only thing missing is the cryptic ID number.Well, the only bad thing is that I am trying to run a probabilistic graphical model on some real data, and having a crash like this will definitely slow things down.

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Distrust of R

March 12, 2013
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I guess I've been living in a bubble for a bit, but apparently there are a lot of people who still mistrust R. I got asked this week why I used R (and, specifically, the package rpart) to generate classification and regression trees instead of SAS Ente...

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Integrating R into a SAS shop

August 29, 2012
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I work in an environment dominated by SAS, and I am looking to integrate R into our environment. Why would I want to do such a thing? First, I do not want to get rid of SAS. That would not only take away most of our investment in SAS training and hiring good quality SAS programmers, but...

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Using R for a salary negotiation–an extension of decision tree models

March 21, 2012
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Using R for a salary negotiation–an extension of decision tree models

Let’s say you are in the middle of a salary negotiation, and you want to know whether you should be aggressive in your offering or conservative. One way to help with the decision is to make a decision tree. We’ll work with the following assumptions: You are at a job currently making $50k You have the choices between...

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From datasets to algorithms in R

December 5, 2011
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Many statistical algorithms are taught and implemented in terms of linear algebra. Statistical packages often borrow heavily from optimized linear algebra libraries such as LINPACK, LAPACK, or BLAS. When implementing these algorithms in systems such as Octave or MATLAB, it is up to you to translate the data from the use case terms (factors, categories, numerical variables)...

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R-bloggers

December 5, 2011
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For a long time, I have relied on R-bloggers for new, interesting, arcane, and all around useful information related to R and statistics. Now my R-related material is appearing there. If you use the R package at all, R-bloggers should be in your feed a...

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R to Word, revisited

September 12, 2011
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In a previous post (a long time ago) I discussed a way to get a R data frame into a Word table. The code in that entry was essentially a brute force way of wrapping R data in RTF code, but that RTF code was the bare minimum. There was no optimization of widths, or borders, or...

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More on Ultraedit to R

March 27, 2011
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I think I have found a superior solution to integrating Ultraedit and R. See my post over at IDM Users forum.

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Ultraedit to R

January 21, 2011
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My favorite text editor on Windows is Ultraedit, but it does not have a nice interface to R in the same vein as Emacs/ESS, Tinn-R, or Eclipse. (I have never used Eclipse.) Ultraedit is powerful enough to submit whole R programs...

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Dona eis Python, whap!

January 15, 2011
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Well, I'm taking the plunge and learning Python. We'll see how this goes. Then I'll try NumPy (and SciPy, if it gets ported), and see of I can get R and Python talking.

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