Articles by Josef Fruehwald

Visualizing Graphical Models

July 10, 2012 | Josef Fruehwald

I'm anticipating presenting research of mine based on Bayesian graphical models to an audience that might not be familiar with them. When presenting ordinary regression results, there's already the sort of statistical sniper questions along the lines o... [Read more...]

Overplotting solution for black-and-white graphics

June 18, 2012 | Josef Fruehwald

I'm working on producing some black and white graphics of data which has a lot of overplotting. There are three basic groups, which if I made the plot in ordinary full color ggplot2 would look like this (the code for the reverse-log x-axis is available... [Read more...]

Linguistic Notation Inside of R Plots!

April 14, 2012 | Josef Fruehwald

So, I've been playing around with learning knitr, which is a Sweave-like R package for combining LaTeX and R code into one document. There's almost no learning curve if you already use Sweave, and I find a lot of knitr's design and usage to be a lot nicer.I wasn't ...

[Read more...]

More on Philadelphia Homicide

March 31, 2012 | Josef Fruehwald

I've been doing more analysis of the Philadelphia Homicide data that the Philadelphia Inquirer has published, and presented some of it at the Philadelphia UseR group yesterday. My slides [pdf] and source [knitr .Rnw] are on github.I should be clear tha...

[Read more...]

Philadelphia Schools

March 7, 2012 | Josef Fruehwald

I'm on spring break, and yesterday I took some time to check off some items on my to-do list, namely:Start getting acquainted with all the new features of ggplot2 [PDF].Get a handle on dealing with geographic data in R.I've done some furtive geographic...

[Read more...]

My Pocket Change

March 4, 2012 | Josef Fruehwald

I'm playing around with some personal data collection, and using some cloud computing to visualize it. Following the directions in this blog post, I've written an R function which visualizes data it draws from a Google Docs spreadsheet, and uploaded it... [Read more...]

A terrible 2000 words

March 2, 2012 | Josef Fruehwald

I've only just started looking at the homicide data made available by the Philadelphia Inquirer in my free time (which is hard to come by lately). I've been thinking about what sorts of statistics I could do, or what kinds of additional data sets I cou... [Read more...]

Distressing Numbers for Women

January 27, 2012 | Josef Fruehwald

Sometimes I play with non-linguistic data sets recreationally. It's a totally valid hobby! I tend to gravitate towards data on the disparities between men and women, because gender equality is something that matters to me.I've had this one data set for... [Read more...]

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Articles by Josef Fruehwald

Visualizing Graphical Models

Overplotting solution for black-and-white graphics

Linguistic Notation Inside of R Plots!

More on Philadelphia Homicide

Philadelphia Schools

My Pocket Change

A terrible 2000 words

Distressing Numbers for Women

Articles by Josef Fruehwald

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