Blog Archives

Sentiment Use Across the Course of Pitchfork Music Reviews: A Tidy Text Analysis with R

June 6, 2018
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Sentiment Use Across the Course of Pitchfork Music Reviews: A Tidy Text Analysis with R

In this post, we'll return to the Kaggle data containing information on Pitchfork music reviews. In a previous post, I used this dataset to cluster music genres. In the current post, I will use R and the tidytext package (and philosophy) to examine the text of the music reviews. Specifically, the goal of the analysis described in this post...

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Anscombe’s Quartet: 1980’s Edition

January 7, 2018
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Anscombe’s Quartet: 1980’s Edition

In this post, I'll describe a fun visualization of Anscombe's quartet I whipped up recently.If you aren't familiar with Anscombe's quartet, here's a brief description from its Wikipedia entry: "Anscombe's quartet comprises four datasets that have nearly identical simple descriptive statistics, yet appear very different when graphed. Each dataset consists of eleven (x,y) points. They were constructed in 1973...

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Clustering Music Genres with R

December 7, 2017
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Clustering Music Genres with R

In a number of upcoming posts, I'll be analyzing an interesting dataset I found on Kaggle. The dataset contains information on 18,393 music reviews from the Pitchfork website. The data cover reviews posted between January 1999 and January 2016. I downloaded the data and did an extensive data munging exercise to turn the data into a tidy dataset for...

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Sensographics and Mapping Consumer Perceptions Using PCA and FactoMineR

September 10, 2017
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Sensographics and Mapping Consumer Perceptions Using PCA and FactoMineR

In the last post, we focused on the preparation of a tidy dataset describing consumer perceptions of beverages. In this post, I'll describe some analyses I've been doing of these data, in order to better understand how consumers perceive the beverage category. This type of analysis is often used in sensographics- companies who produce food products (chocolate, sauces, etc.)...

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Showing Some Respect for Data Munging

August 1, 2017
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Showing Some Respect for Data Munging

In this post, I'd like to focus on data munging, e.g. the process of acquiring and arranging data (typically in a tidy manner) prior to data analysis. It's common knowledge that data scientists spend an enormous amount of time munging data, but data analysis, modeling, and visualization get most of the attention at presentations, on blogs and in the...

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Analyzing Accupedo step count data in R: Part 2 – Adding weather data

March 27, 2017
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Analyzing Accupedo step count data in R: Part 2 – Adding weather data

In my last set of posts, I wrote about analyzing data from the Accupedo step counter app I have on my phone. In this post, I'll talk about some additional analysis I've done by merging the step counter data with weather data from another source.The website www.wunderground.com has freely available weather data available for most parts of the world....

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Analyzing Accupedo step count data in R

January 4, 2017
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Analyzing Accupedo step count data in R

Accupedo is a great (and free!) step counting app that I’ve been using for a while now to keep track of how much I walk every day. The app measures the number of steps you make, and has some nice visualizations that allow you to see how many steps you’ve walked in the past days, weeks, months and years....

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Rap text analysis- Watch the Throne (Kanye West and Jay Z) – Part 3

March 3, 2014
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Rap text analysis- Watch the Throne (Kanye West and Jay Z) – Part 3

This last post will give a quick overview of two other methods I used to try to understand Watch the Throne using text analysis with R. Last post about this album, I promise!The first analysis I'll present here has to do with clustering of songs. I was very inspired by the Stanford Literary Lab's series of pamphlets, particularly their...

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Rap text analysis- Watch the Throne (Kanye West and Jay Z) – Part 2

January 5, 2014
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Rap text analysis- Watch the Throne (Kanye West and Jay Z) – Part 2

In my last post, I described some first text analyses I did with R, using wordclouds to visualize language use in Kanye West and Jay-Z's collaborative 2011 album "Watch the Throne."This post presents some more statistically-oriented analyses of languag...

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Rap text analysis- Watch the Throne (Kanye West and Jay Z) – Part 1

December 28, 2013
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Rap text analysis- Watch the Throne (Kanye West and Jay Z) – Part 1

Over the past couple of months I've been playing around with text analysis in R. I'm eventually going to use these methods for a business-type problem, but as a way to learn how to conduct different types of text analyses and to learn the methods, I've been looking at song lyrics for rap music.One of...

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