Package weka.core.expressionlanguage.common

Class MathFunctions

java.lang.Object
weka.core.expressionlanguage.common.MathFunctions
All Implemented Interfaces:
MacroDeclarations
public class MathFunctions extends Object implements MacroDeclarations
Macro declarations for common mathematical functions.

The following functions are being exposed through macros:
  • {@link java.lang.Math.abs(double)} as abs
  • {@link java.lang.Math.sqrt(double)} as sqrt
  • {@link java.lang.Math.log(double)} as log
  • {@link java.lang.Math.exp(double)} as exp
  • {@link java.lang.Math.sin(double)} as sin
  • {@link java.lang.Math.cos(double)} as cos
  • {@link java.lang.Math.tan(double)} as tan
  • {@link java.lang.Math.rint(double)} as rint
  • {@link java.lang.Math.floor(double)} as floor
  • {@link java.lang.Math.ceil(double)} as ceil
  • {@link java.lang.Math.pow(double)} as pow
Version:
$Revision: 1000 $
Author:
Benjamin Weber ( benweber at student dot ethz dot ch )

  • Constructor Details

    • MathFunctions

      public MathFunctions()

  • Method Details

    • hasMacro

      public boolean hasMacro(String name)
      Whether the macro is declared
      Specified by:
      hasMacro in interface MacroDeclarations
      Parameters:
      name - of the macro
      Returns:
      whether the macro is declared

    • getMacro

      public Macro getMacro(String name)
      Tries to fetch the macro

      The same invariant of MacroDeclarations applies here too.
      Specified by:
      getMacro in interface MacroDeclarations
      Parameters:
      name - name of the macro
      Returns:
      a macro