Help

Training Videos (screencasts)

• Create Table: An Introduction
• Variable Browser
• How to Create and Use Variable Categories
• Subgroup

Help File Index

• Table Designer
• Create Table: An Introduction
• Variable Browser
• How to Create and Use Variable Categories
• Subgroup

Table Designer

The NHTS Table Designer allows you to build customized tabluations using only a Web browser. The 2001 NHTS and the 1995 NPTS are supported. A basic NHTS tabulation consists of an Analysis Variable and from one to three tabulation variables.

A two-way table is a cross tabulation and a three-way table is a two-way table by page.

Use the Variable Browser to add analysis variables to your customized variable list.

Create Table: An Introduction

For your first tabulation, default values have been set for the Analysis Variable (Count of Households) and tabulation variable (household income, HHFAMINC). Click the Create Table button to submit the table request. This returns a Job ID. After a minute or so, click on the Output Area button to check on the status of your job. The Output Area contains links to your table in HTML and Excel spreadsheet formats.

Variable Browser

Use the Variable Browser to browse the survey codebook and to add analysis variables to your customized variable list. Click to open the Variable Browser. There are two Variable Browser views: Table View and Tree View (i.e., by variable classification). The Codebook Page for a selected variable will include a button to add the variable to your variable list.

How to Create and Use Variable Categories

Variable Categories provide a way for you to collapse response categories into groups (e.g., low income). Click to open the Variable Categories editor.

The example above shows that a Variable Values list can contain codebook values separated by a comma, a range separated by a dash, and keywords for Low and High.

The Pick List is a convenient way to transfer response values from the codebook to the Variable Categories form.

Subgroup

The Subgroup option provides a way to focus the tabulation on a specified subset of survey response records. A subgroup statement is very similar to an SQL where clause.

It is possible to create an error due to a illogical or syntactically incorrect Subgroup Statement. The Output Area will display a modifed Log file link. Check the log file for hints on how to correct the problem.