How to Dynamically Change Binary or Numeric Variable Sets in an Output Based on a Control Box

This article describes how to use a Control Box to select which multi-variable questions to display in a table, chart, or visualization. The post contains the steps required to create a Page like this:

Dynamically change multi-variable question.gif

Requirements

Please note these steps require a Displayr license.

A data set with at least two multi-variable questions to choose between.
A Control Box (see How to Create a Combo Box Filter or How to Create a List Box Filter).
An output (e.g., tables, chart, visualization) to control.

Additional requirements for Method 1:

Your variables must be set together as either a Binary – Multi or Numeric – Multi.
The questions you wish to choose between must have the same number of variables (answer codes).
The same variable labels must be applicable for all questions, as these can't change dynamically.

Method 1 - chose between questions with the same number of variables

When the requirements for this method are met, you can follow the same process as you would when using a single-response question. See: How to Dynamically Change a Question Based on a Control Box.

Method 2 - other variables

When the number of variables and/or variable labels are different between the questions you wish to dynamically change using a control box, it is better to switch between tables instead of questions.

Go to the Anything menu and select Page Design > Control > Combo Box (Drop-down).
With the control selected, go to the object inspector > Control > Item List and input the variable set labels you wish to appear in the list (e.g., Age; Income; Gender ), separating all items in the list with a semi-colon (;).
Change Selection Mode to Single Selection.
Change When item lists changes to Select First.
Still, in the object inspector go to Properties > General > Name and input the desired name (e.g. Question.control.box) to use when referencing the Control Box in the R code.
Drag and drop questions you wish to show from the Data Sources onto the page to create a table. Repeat this step for all the questions you wish to show.
OPTIONAL: Drag and drop a variable from the Data Sources onto the table itself into the Columns field to create a crosstab.
In this example, I have created three crosstabs to choose between:
Select the tables, right-click and select Hide from the menu.
Go to Calculation > Custom Code.
Click on the Page where you want to position the output.
Update and input the below R Code:
```
if (Question.control.box=="Age") table.Awareness.by.What.is.your.age else
if (Question.control.box=="Income") table.Awareness.by.What.is.your.income else
if (Question.control.box=="Gender") table.Awareness.by.what.is.your.gender
```
The above code looks up the selected value in our Control box (e.g. "Age"), and when matched returns the referenced table. You will need to update the above code and replace Question.control.box with the name of your control (see Step 5). You will also need to replace the mentions of table.Awareness.by.What.is.your.age and so on with the names of your tables created in Step 6. To locate the name of the table, select it and from tools > select Copy > Copy name, or go to the object inspector > Properties > GENERAL > Name.
You can use the Calculation Output you created as the Data source for a visualization or another type of analysis.