Articles by Matt

Create a Radial Movie/TV Barcode Using Polar Coordinates

July 12, 2020 | Matt

This post is going to be a little different from my usual, as it relies heavily on calls to ffmpeg. This should work on Linux/OSXContinue ReadingCreate a Radial Movie/TV Barcode Using Polar Coordinates

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Split Intermixed Names into First, Middle, and Last

October 21, 2019 | Matt

Data cleaning can be a challenge, so I hope this helps the process for someone out there. This is a tiny, but valuable function for…Continue ReadingSplit Intermixed Names into First, Middle, and Last [Read more...]

Bigram Analysis of Democratic Debates

August 30, 2019 | Matt

This tutorial will mainly focus on ggplot and bigrams, but it does gloss over clustering for a heatmap. This project started a while back, tweetingContinue ReadingBigram Analysis of Democratic Debates

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Visualizing Bike Share Data (NiceRide)

March 1, 2019 | Matt

This tutorial will cover exploring and visualizing data through 2018 for the Minneapolis, MN bike sharing service NiceRide. Part of what makes R incredible isContinue ReadingVisualizing Bike Share Data (NiceRide)

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Create 3D County Maps Using Density as Z-Axis

November 29, 2018 | Matt

This is going to be a bit longer than some of my previous tutorials as it covers a walkthrough for sourcing data, scraping tables, cleaning,…Continue ReadingCreate 3D County Maps Using Density as Z-Axis

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MySQL Data Type Mapping in R

October 2, 2018 | Matt

There was a recent question in the /r/Rlanguage subreddit which piqued my interest. They asked how to find the right mapping, and with the large…Continue ReadingMySQL Data Type Mapping in R [Read more...]

Scraping Tables from Wikipedia for Visualizing Climate Data

September 25, 2018 | Matt

If anyone else is like me, eventually when looking up a future destination you will stumble across the climate data table on Wikipedia. There is…Continue ReadingScraping Tables from Wikipedia for Visualizing Climate Data

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Machine Learning as a Service

April 17, 2018 | Matt

What is Machine Learning as a Service? With all of this news coming out about Cambridge Analytica (and how they have leveraged/weaponized data science for…Continue ReadingMachine Learning as a Service

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Importing Large NDJSON Files into R

February 8, 2018 | Matt

I ran into this problem recently when trying to import the data my twitter scraper produced and thought this might make a worthwhile post. The…Continue ReadingImporting Large NDJSON Files into R

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Trouble Upgrading to R 3.4 on Debian

October 9, 2017 | Matt

Recently had a very frustrating error on Proxmox (Debian) while trying to upgrade to R 3.4.2 [crayon-5bc9e6ecf1bc2729561108/] The solution was to add a source [crayon-5bc9e6ecf1bca007854588/]…Continue ReadingTrouble Upgrading to R 3.4 on Debian [Read more...]

One Line to Get and Print All Loaded Library Packages in R

September 24, 2017 | Matt

This function is really only useful for those of us who try to rapidly develop a script to give our output, whether it is a…Continue ReadingOne Line to Get and Print All Loaded Library Packages in R [Read more...]

Function to Read NDJSON (Newline Deliminated JSON) Files

July 3, 2017 | Matt

Notice jsonlite has a stream_in() function that works much better and faster. Do not use this I ended up writing this while working on a…Continue ReadingFunction to Read NDJSON (Newline Deliminated JSON) Files [Read more...]

Keyword Searches from Comma Separated Terms

April 27, 2017 | Matt

Long story short, I need to convert a pretty simple OR search to a non-directional AND keyword search. Direction is straightforward, with just using [.*?]…Continue ReadingKeyword Searches from Comma Separated Terms [Read more...]

Use an R Session as a Websocket Server

April 23, 2017 | Matt

This is VERY simple R function that when ran turns your R session into a websocket server. For this example it returns the standard deviation…Continue ReadingUse an R Session as a Websocket Server [Read more...]

Return a Vector of Each Word Found Before the End of a Sentence

April 6, 2017 | Matt

This little function returns the vector of each word found before the end of a sentence. I ended up writing this for a pet project…Continue ReadingReturn a Vector of Each Word Found Before the End of a Sentence [Read more...]

Five Interactive R Visualizations With D3, ggplot2, & RStudio

August 24, 2015 | Matt

Plotly has a new R API and ggplot2 library for making beautiful graphs. The API lets you produce interactive D3.js graphs with R. This post has five examples. Head to our docs to get a key and you can start making, embedding, and sharing plots. The code below produces ...

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R, Python, MATLAB, & Excel Dashboards & Graphs with D3.js & WebGL

April 29, 2015 | Matt

Web tools like D3.js and WebGL let you make beautiful, interactive 2D and 3D graphs. You can now publish graphs and dashboards with these technologies using Python, R, MATLAB, & Excel. Publishing and sharing is one extra line of code. This post puts you on your way, no downloads or ... [Read more...]

Using R, Python, & Plotly With Tableau

April 1, 2015 | Matt

Andy Kriebel recently pointed out that Tableau dashboards let you export their underlying data. Using data frames in R or Python we can read data from Tableau. Then we can plot with Plotly’s Python and R APIs. The use case: collaborate and share data across languages and teams. Let’... [Read more...]

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Articles by Matt

Create a Radial Movie/TV Barcode Using Polar Coordinates

Split Intermixed Names into First, Middle, and Last

Bigram Analysis of Democratic Debates

Visualizing Bike Share Data (NiceRide)

Create 3D County Maps Using Density as Z-Axis

MySQL Data Type Mapping in R

Scraping Tables from Wikipedia for Visualizing Climate Data

Machine Learning as a Service

Importing Large NDJSON Files into R

Trouble Upgrading to R 3.4 on Debian

One Line to Get and Print All Loaded Library Packages in R

Function to Read NDJSON (Newline Deliminated JSON) Files

Keyword Searches from Comma Separated Terms

Use an R Session as a Websocket Server

Return a Vector of Each Word Found Before the End of a Sentence

Five Interactive R Visualizations With D3, ggplot2, & RStudio

R, Python, MATLAB, & Excel Dashboards & Graphs with D3.js & WebGL

Using R, Python, & Plotly With Tableau