How to Create Log Transform Variable(s)

Log transformation is a data transformation method that replaces each variable x with a log(x). This article describes how to apply the log transformation to numeric variable sets, for example:

Requirements

• A Displayr document containing numeric data.

Method

1. Select the numeric variable in the Data Sources tree that you would like to compute the case-level shares.
2. Click + > Numeric Transformations > Log. This will create a new numeric variable that is the log(x) using R.
3. The code that has been used can be viewed by going to Properties > Data > Attributes > Code. The Code panel will open, and the code will look similar to below:
   

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How to Create Square-Root Variable(s)