You can subset and analyze data files before you download the file or your subsets.
To access the Subset and Analysis options for a data set:
- Click the title of the study from which you choose to analyze or download a file or subset.
- Click the Documentation, Data and Analysis tab for the study.
- In the list of study files, locate the data file that you choose to download, subset, or analyze.
You can download data sets for a file only if the file entry includes the subset icon.
- Click the subset icon associated with the selected file.
If prompted, check the I accept box and click Continue to accept the Terms of Use, and then click the subset icon again.