Create New Variables - Multiple Numeric R Variables

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This feature allows you to create multiple numeric variables in a variable set with R code. This enables you to make multiple R variables at once by writing a single piece of R code (as opposed to writing separate code to generate each variable in the set. The R Code that you write should return a numeric matrix, or data frame whose columns are either numeric or factor.

Variable sets that are created using R cannot change the number of columns of data that they produce. It is best to plan ahead and consider how many variables you wish to create before running this option. It may be helpful to prototype your code in a Calculation before creating your variables, as this will give you immediate feedback about the size of the data that your code has created, as well as the values that it contains.

Usage

Hover your mouse under Data Sets in the position you wish the new variables to be added.
Click the + icon which appears.
Select Custom Code > Multiple R Variables > Numeric.
Enter the number of variables you wish to create, and click OK.
Use Properties > R Code on the right side of the screen to enter the code you wish to use.

How to apply this QScript

Start typing the name of the QScript into the Search features and data box in the top right of the Q window.
Click on the QScript when it appears in the QScripts and Rules section of the search results.

OR

Select Automate > Browse Online Library.
Select this QScript from the list.

Customizing the QScript

This QScript is written in JavaScript and can be customized by copying and modifying the JavaScript.

Customizing QScripts in Q4.11 and more recent versions

Start typing the name of the QScript into the Search features and data box in the top right of the Q window.
Hover your mouse over the QScript when it appears in the QScripts and Rules section of the search results.
Press Edit a Copy (bottom-left corner of the preview).
Modify the JavaScript (see QScripts for more detail on this).
Either:
- Run the QScript, by pressing the blue triangle button.
- Save the QScript and run it at a later time, using Automate > Run QScript (Macro) from File.

Customizing QScripts in older versions

Copy the JavaScript shown on this page.
Create a new text file, giving it a file extension of .QScript. See here for more information about how to do this.
Modify the JavaScript (see QScripts for more detail on this).
Run the file using Automate > Run QScript (Macro) from File.

JavaScript

includeWeb('QScript Functions for Calculations');

createEmptyRVariableSet(false);