Blog Archives

How to Create a Correlation Matrix in R

October 22, 2018
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How to Create a Correlation Matrix in R

A correlation matrix is a table of correlation coefficients for a set of variables used to determine if a relationship exists between the variables. The...

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How to Calculate Jaccard Coefficients in Displayr Using R

October 11, 2018
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How to Calculate Jaccard Coefficients in Displayr Using R

To measure the overlap or similarity between the data in two binary variables you can use a Jaccard coefficient. The coefficient ranges between 0 and 1,...

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Simple Web Scraping in Displayr Using R

October 3, 2018
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Simple Web Scraping in Displayr Using R

In this article I will scrape a data table from a Wikipedia article. The data contains information about life expectancy for different groups within each...

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How to Combine Complicated Tables in Displayr Using R

September 29, 2018
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How to Combine Complicated Tables in Displayr Using R

You can use R to to splice and dice tables that have been created with Displayr’s built-in statistical engine. This is particularly handy when you want...

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How to analyze max-diff data in R

May 23, 2017
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How to analyze max-diff data in R

This post discusses a number of options that are available in R for analyzing data from max-diff experiments, using the package flipMaxDiff. For a more detailed explanation of how to analyze max-diff, and what the outputs...

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Text analysis: Hooking up your term document matrix to custom R code

February 27, 2017
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Text analysis: Hooking up your term document matrix to custom R code

  I have previously written about some of the text analysis options that are available in Displayr: sentiment analysis, text cleaning, and the predictive tree.  As text analysis is a growing field, you likely want to...

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