SLICE 1.5: A software framework for automatic edit and imputation

1
SLICE 1.5 A software framework for automatic
edit and imputation

• Ton de WaalStatistics Netherlands
• UN/ECE Work Session on Statistical Data Editing,
  16-18 May 2005, Ottawa

2
SLICE 1.5

• Several related modules for automatic edit and
  imputation
• Blaise parser reads and interprets Blaise edit
  rules
• Cherry Pie localises errors
• Module for highly contaminated records localises
  errors in records with many erroneous values
• Imputation module imputes missing and erroneous
  data
• AdaptValues adjusts imputed values so all edits
  become satisfied

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SLICE 1.5

• Modules can be used in combination or separately
• SLICE 1.5 can handle
• categorical, continuous and integer data
• positive and negative values
• complex edits with inequalities, equations, IF
  THEN ELSE statements, AND/OR/NOT operators, e.g.
• IF ((Tax on wages gt 0) AND (Activity code
  Chemical Industry))
• THEN ((Number of employees ? 100) OR
  (Size ? Medium, Large))