Category Archives: Data Mangement

Group-By Modeling in R Made Easy

There are several aspects of the R language that make it hard to learn, and repeating a model for groups in a data set used to be one of them. Here I briefly describe R’s built-in approach, show a much … Continue reading

Posted in Data Mangement, Data Science, R, Uncategorized | 8 Comments

R Training at Nicholls State University

I’ll be presenting two workshops back-to-back at Nicholls State University in Thibodaux Louisiana June 14-16. The first workshop will cover a broad range of R topics. Each topic will include a brief comparison to how R differs from the popular … Continue reading

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Adding the SPSS MEAN.n Function to R

SPSS contains a very useful set of functions that R lacks. If you’re lucky enough to have access to SPSS, you can use SPSS and R very well together. If not, it’s easy to add these functions to R. The … Continue reading

Posted in Analytics, Data Mangement, R, SPSS, Uncategorized | 11 Comments

R Workshops Updated to Include the Latest Packages

Two new R packages are quickly becoming standards in the R community: Hadley Wickham’s dplyr and tidyr. The dplyr package almost completely replaces his popular plyr package for data manipulation. Most importantly for general R use, it makes it much easier … Continue reading

Posted in Analytics, Data Mangement, R, Uncategorized | 4 Comments

Learn to Manage Data at useR! 2014 or Online April 25

Before you can analyze data, it must be in the right form. Join me on April 25th for a 4-hour webinar that shows how to perform the most commonly used data management tasks in R. We will work through hands-on examples of … Continue reading

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Learn R and/or Data Management from Home January or April

If you want to learn R, or improve your current R skills, join me for two workshops that I’m offering through Revolution Analytics in January and April. If you already know another analytics package, the workshop, Intro to R for … Continue reading

Posted in Analytics, Data Mangement, R, SAS, SPSS, Statistics | Tagged , | 2 Comments

Learn R and/or Data Management from Home October 7-11

If you want to learn R, or improve your current R skills, join me for two workshops that I’m offering through Revolution Analytics in October. If you already know another analytics package, the workshop, Intro to R for SAS, SPSS … Continue reading

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Webinar: Managing Data with R

Before you can analyze data, it must be in the right form. Join Revolution Analytics and me this June 21st for a 4-hour webinar that shows how to perform the most commonly used data management tasks in R. We will work through … Continue reading

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Comparing Transformation Styles: attach, transform, mutate and within

There are several ways to perform data transformations in R. Each has its own set of advantages and disadvantages. Let’s take one variable, square it and add 100. How many ways might an R beginner screw up such a simple … Continue reading

Posted in Analytics, Data Mangement, R, Uncategorized | 11 Comments

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