Articles by Lee Pang

My Job Just Got Shiny-er

December 4, 2012 | Lee Pang

Today I went to the RStudio site to post a feature request.  I noticed up in the top navigation a link called "Shiny".  I like things that are shiny.  It turns out Shiny is a new package the RStudio team has developed for easily making r... [Read more...]

Making Color Ramps in Matlab

October 9, 2012 | Lee Pang

When visualizing an array of data in a heatmap, a good color map makes a world of difference.Thanks to my work in 'omics (i.e. transcriptomics - microarrays and RNASeq) I've looked at a lot of heatmaps over the past couple of years, and generated quite... [Read more...]

Making rApache load rJava

June 13, 2012 | Lee Pang

Here at work I've been in the business of developing webapps using R as the backend computational framework.  The list of parts to get this running is pretty lightweight, just:R Apache 2rApacheI'm not going to cover how to set these things up here... [Read more...]

Excel Import into R without rJava

May 17, 2012 | Lee Pang

In my ongoing quest to webappify various R scripts I discovered that rApache cannot load any R packages that depend on rJava.  For several of the scripts that I've written that grab data out of MS Excel files, and therein use the xlsx package, thi... [Read more...]

RegEx: Named Capture in R

May 3, 2012 | Lee Pang

I consider myself a decent RegEx user.  References to famous quotes about RegEx aside, I find it intuitive, like its speed and that it makes my code simple (more so than the alternative anyhow). Thus, I use RegEx where I can in the growing grab bag of languages I consider ... [Read more...]

One app, three languages

April 13, 2012 | Lee Pang

This past week at work I had the opportunity to code the same algorithm using each of the three scientific programming/scripting languages I'm familiar with:MatlabPythonRThe list above is the order that the (re)-coding was done and serves as a beginnin... [Read more...]
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