Download µ-ARGUS 3.1 manual

The window for the specification of the combinations
When you are satisfied with the specified set of tables you press the button ‘Calculate tables’.
This will be done in three phases. In the first phase µ−ARGUS will inspect the microdata file and
construct lists of existing codes for the active variables. These lists are constructed independently
from the specified codelists. This is done in order to prevent from problems arising when some
existing codes might be missing in the codelists. When the codelists are available µ−ARGUS will in
the second phase calculate the tables to be inspected. In the final third phase the marginals of the
tables will be calculated. The progress is shown by the progress bar.
After this you are ready to start the disclosure control process.
3.2 The process of Disclosure Control
When all the preparations have been made the actual process of Disclosure Control can start. The
two main actions that can be performed are Global Recoding and Local Suppression. Additionally you
can modify numerical variable by ‘top/bottom coding‘ and ‘rounding’. The user can select and
perform manually the Global Recodings (via Modify|Global Recode). The central information
window is the main window where for each variable the number of unsafe combinations is shown by
dimension of the table. For the selected variable in the left window the number of unsafe
combinations for each category are shown. The higher the number of unsafe combinations for a
variable the more likely it is that the variable needs to be globally recoded in order to achieve a safe
microdata file.
µ-ARGUS (3.1) user’s manual
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