Blog Archives

Graphic Parameters (symbols, line types, and colors) for ggplot2

April 26, 2012
By
Graphic Parameters (symbols, line types, and colors) for ggplot2

Following up on John Mount’s post on remembering symbol parameters in ggplot2, I decided to give it a try and included symbols, line types, and colors (based upon Earl Glynn’s wonderful color chart).  Code follows below.    

Read more »

Setting Up and Customizing R

March 7, 2012
By

For the longest time I resisted customizing R for my particular environment. My philosophy has been that each R script for each separate analysis I do should be self contained such that I can rerun the script from top to bottom on any machine and get the same results. This being said, I have now

Read more »

makeR: An R Package for Managing Document Building and Versioning

February 19, 2012
By

If you are reading this vis-à-vis R-Bloggers, then you know how good R, LaTeX, and Sweave are for generating reports and/or conducting reproducible research. It has been particularly valuable for me in Institutional Research where there are many reports that I need to prepare on a regular basis (some monthly, some quarterly, some annually). However, one issue

Read more »

Given a room with n people in it, what is the probability any two will have the same birthday?

January 31, 2012
By
Given a room with n people in it, what is the probability any two will have the same birthday?

Revisiting a fun puzzle I remember first encountering as an undergraduate. Nice example of creating a plot in R using ggplot2. I also plot the probability of someone in the room having the same birthday as you.

Read more »

Given a room with n people in it, what is the probability any two will have the same birthday?

January 31, 2012
By
Given a room with n people in it, what is the probability any two will have the same birthday?

Revisiting a fun puzzle I remember first encountering as an undergraduate. Nice example of creating a plot in R using ggplot2. I also plot the probability of someone in the room having the same birthday as you.## See http://en.wikipedia.org/wiki/Bi...

Read more »

Given a room with n people in it, what is the probability any two will have the same birthday?

January 31, 2012
By
Given a room with n people in it, what is the probability any two will have the same birthday?

Revisiting a fun puzzle I remember first encountering as an undergraduate. Nice example of creating a plot in R using ggplot2. I also plot the probability of someone in the room having the same birthday as you.## See http://en.wikipedia.org/wiki/Bi...

Read more »

Object Oriented Programming in R

January 20, 2012
By

As someone who was a Java programmer for many years learning R’s object oriented programming framework has been frustrating to say the least. I like the simplicity of S3 but find it limiting when you wish to write methods that change the underlying data elements. That is, printing, summarizing, and plotting work great because they

Read more »

Object Oriented Programming in R

January 20, 2012
By

As someone who was a Java programmer for many years learning R’s object oriented programming framework has been frustrating to say the least. I like the simplicity of S3 but find it limiting when you wish to write methods that change the underlyi...

Read more »

Object Oriented Programming in R

January 20, 2012
By

As someone who was a Java programmer for many years learning R’s object oriented programming framework has been frustrating to say the least. I like the simplicity of S3 but find it limiting when you wish to write methods that change the underlyi...

Read more »

Retrieving RSS Feeds Using Google Reader

January 13, 2012
By
Retrieving RSS Feeds Using Google Reader

I have been working on a new package makeR to help manage Sweave projects where you wish to create multiple versions of documents that are based on a single source. For example, I create lots of monthly and quarterly reports using Sweave and the only ...

Read more »