Basic computing operations

 

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

• Preprocessing data
  • Basic preprocessing
  • Whitening preprocessor command
  • Equalize values within records
  • Treatment for missing data
• Generating data
• Field evaluator
  • Expressions
  • Field calculator
  • Record selector
  • Classification with expressions
  • Select classes by evaluating a boolean expression
• Record evaluator
• Class evaluator
• Field statistics
  • Basic statistics for fields
  • Quartiles for data fields
  • Histograms for fields
  • Comparison of two data frames
• Class statistics
  • Basic statistics for classes
  • Class identifiers
  • Identifying classes by values
  • Evaluating the number of items in classes
  • Values for distributions in classes
  • Histograms for classes
• Fuzzy sets
  • Creating a fuzzy structure
  • Creating fuzzy sets
  • Altering the membership functions of fuzzy sets
  • An example sequence of fuzzy operations
  • Computing fuzzy membership values for a field
• Calculating distances between data records
• Group membership evaluation