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Tim Matteson's Blog – July 2015 Archive (3)

Comprehensive guide for Data Exploration in R

This guide addresses the following questions, with sample source code:

  • How to load data file(s)?
  • How to convert a variable to different data type?
  • How to transpose a table?
  • How to sort Data?
  • How to create plots (Histogram, Scatter, Box Plot)?
  • How to generate frequency tables?
  • How to do sampling of Data set?
  • How to remove duplicate values of a variable?
  • How to group variables to calculate count, average,…
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Added by Tim Matteson on July 28, 2015 at 5:30pm — No Comments

24 Data Science, R, Python, Excel, and Machine Learning Cheat Sheets

Here's a good starting point. You can find many additional references here (Python, Excel, Spark, R, Deep Learning, AI, SQL, NoSQL, Graph Databses, Visualization, etc.) as well as here, here, and…

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Added by Tim Matteson on July 28, 2015 at 12:00pm — 4 Comments

Hadley Wickham, the Man Who Revolutionized R

Wickham earned his renown as the preeminent developer of packages for R, a programming language developed for data analysis. Packages are programming tools that simplify the code necessary to complete common tasks such as aggregating and plotting data. He has helped millions of people become more efficient at their jobs -- something for which they are often, and…

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Added by Tim Matteson on July 28, 2015 at 11:00am — No Comments

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