Table for publication (estimates, precision, confidentiality)
In brief
Under "New analysis" → "Table for publication" you get a table as official statistics publish it: weighted estimates or proportions, each cell with its precision, small cells suppressed, with a legend, footnotes and source.
How it works
- Set the case weight in the project (survey weight). Without a weight, the table shows plain counts.
- Choose rows and, if wanted, columns; content: estimated number, proportion in % (of the row, the column, the total), mean or sum of a number.
- Precision: if the file has replicate weights (for example w_rep01 to w_rep50), choose them and enter type and factor - both are in the description of the data. Otherwise Statable only computes standard errors if people were drawn individually.
- Confidentiality: suppress (cells below the minimum count, plus enough others that no suppressed number can be worked out from the totals) or round.
- Enter source and footnote, then export (Excel, Word, PDF) or add to the report.
Symbols
- "x": suppressed (too few cases or confidentiality).
- "( )": low reliability (few cases or a large coefficient of variation).
- "-": nothing there. ".": not available.
Important
- The limits (minimum count, limits for "x" and "( )") are set by the organisation. The defaults are examples.
- The check log (reasons for suppression, counts, protection intervals) is only for checking. It is not exported.
- Confidentiality protects a single table. If several tables from the same data are published, suppressed numbers may be worked out through another table; the responsible body checks this.
For specialists
Estimation with R survey (svytotal, svymean; Taylor linearisation or svrepdesign with mse = TRUE), degrees of freedom from degf. Secondary suppression with the hypercube method for two dimensions with margins; every suppression pattern is checked by linear optimisation (protection interval, suppressed counts at least 1).