Basic computing operations

 

The basic data computing involves operations for simple computing. There are two main groups of such operations. The first group is purposed to the basic computing for data fields through the so-called field evaluator. The second group involves operations for the basic statistics either for fields or classes.

• Preprocessing data
  • The basic preprocessing
  • Whitening preprocessor command
  • Equalization values within records
  • Treatment for missing data
• Field evaluator
  • Expressions
  • Field calculator
  • Record selector
  • Classification by fields
  • Select classes by evaluating a boolean expression
• Record evaluator
• Class evaluator
• Field statistics
  • Basic statistics for fields
  • Histograms for fields
  • Comparison of two data frames
• Class statistics
  • Basic statistics for classes
  • Class identifiers
  • Identifying classes by values
  • Computing the number of items in classes
  • Values for distributions in classes
  • Distances between data records and classes
  • Histograms for classes
• Fuzzy sets
  • Creating a fuzzy structure
  • Creating fuzzy sets
  • Setting the membership functions of the fuzzy sets
  • Example sequence about fuzzy operations
  • Computing fuzzy membership values for a field
• Calculating distance between data and groups
• Group membership evaluation