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Tim Matteson's Blog (7)

Enterprise AI Landscape - Infographic

Added by Tim Matteson on April 26, 2017 at 1:04pm — 3 Comments

View the New DSC Classified Section

Here are just a few featured listings in our new section:

View all listings here. …

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Added by Tim Matteson on February 27, 2017 at 1:00pm — No Comments

Impala vs Hive: Difference between Sql on Hadoop components

This article is no longer available. We apologize for the inconvenience. To read more about Impala versus Hive, click here for Impala, and click here for Hive.

Added by Tim Matteson on January 6, 2016 at 3:00pm — No Comments

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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