To explore the Nesstar system click on its name or the icon next to it in the left frame. This will expand the selected catalogue, and further catalogues or Nesstar resources (e.g. surveys, tables, etc.) will then be displayed. You can click on the to collapse the expanded catalog.The information in the left pane is known as Nesstar's browse list.
The browse list contains all published resources. Each type of resource contains its own set of folders:
- A survey dataset, indicated by , contains 'Metadata', 'Variable Description', and 'Bookmarks' folders.
- A tabular (cube) dataset, indicated by , contains 'Metadata' and 'Bookmarks' folders.
Nesstar can also store other types of resources. These are indicated by a .
The Metadata folder provides information about the dataset in the following subfolders, when available:
- Document Description
- Study Description
- Data Files Description
- Other Documentation
The Variable Description folder provides details of all variables within a survey dataset. These may be arranged in variable groups which can be expanded by clicking its name or the icon next to it.
The Bookmarks folder will contain 'server' bookmarks and are only available to users with the appropriate permission. See Bookmarks for further information.
Description, Tabulation and Analysis
The tabs at the top of the right frame provide three ways of viewing or analysing the data. For tabular (cube) datasets, Analysis is not available.
The Description tab displays descriptive information about the dataset. When a dataset title is clicked, the Description tab becomes active and the 'Abstract' for that dataset is displayed.
Variable information can also be displyed under this tab by expanding the Variable Description section, and any further sections, until a list of variables is displayed. A variable is indicated by . Select a variable by clicking on its title. The variable title will get underlined and summary statistics will be displayed in the right frame. Any variable level metadata associated with that variable, e.g. question text, will also be displayed.
The Tabulation tab initially displays an empty table. To add a variable to the table, click on a variable in the browse list and select the required option, e.g. add to row. Add more variables as necessary to produce the required tabulation. Once a table has been created, graphs or a map (if available) can be produced. See also Creating Tables, Manipulate Tables, and Graphics.
When the Analysis tab is selected, two further options become available - Correlation and Regression.
Correlation is open by default, and Regression can be selected by clicking the appropriate tab. Click on a variable in the browse list to add it to the analysis. For both correlation and regression analyses, scatterplot diagrams are available.
See Analysis for further details.
The following icons are available depending on the current display or analysis:
- Table view
- Bar chart
- Time series graph
- Clear (survey data) or Return to default table (tabular data)
- Weight (survey data only)
- Subset (survey data only)
- Compute (survey data only)
- Download (survey data only)
- Export table to spreadsheet (Microsoft Excel format)
- Export to pdf
- Bookmark page