Java MathExpression.setIgnoreRange Examples

Example #1

File: MathExpressionTest.java Project: AustinRP/parallel-weka-project

 /** Creates a MathExpression filter with the given expression */
 protected Filter getFilter(String expression) {
   MathExpression f = new MathExpression();
   f.setExpression(expression);
   f.setIgnoreRange("" + (m_AttIndex + 1));
   f.setInvertSelection(true);
   return f;
 }

Example #2

File: MathExpression.java Project: dachylong/weka

  /**
   * Parses a given list of options.
   *
   * <p>
   * <!-- options-start -->
   * Valid options are:
   *
   * <p>
   *
   * <pre> -unset-class-temporarily
   *  Unsets the class index temporarily before the filter is
   *  applied to the data.
   *  (default: no)</pre>
   *
   * <pre> -E &lt;expression&gt;
   *  Specify the expression to apply. Eg. pow(A,6)/(MEAN+MAX)
   *  Supported operators are +, -, *, /, pow, log,
   *  abs, cos, exp, sqrt, tan, sin, ceil, floor, rint, (, ),
   *  MEAN, MAX, MIN, SD, COUNT, SUM, SUMSQUARED, ifelse</pre>
   *
   * <pre> -R &lt;index1,index2-index4,...&gt;
   *  Specify list of columns to ignore. First and last are valid
   *  indexes. (default none)</pre>
   *
   * <pre> -V
   *  Invert matching sense (i.e. only modify specified columns)</pre>
   *
   * <!-- options-end -->
   *
   * @param options the list of options as an array of strings
   * @throws Exception if an option is not supported
   */
  public void setOptions(String[] options) throws Exception {
    super.setOptions(options);

    String expString = Utils.getOption('E', options);
    if (expString.length() != 0) {
      setExpression(expString);
    } else {
      setExpression(m_defaultExpression);
    }

    String ignoreList = Utils.getOption('R', options);
    if (ignoreList.length() != 0) {
      setIgnoreRange(ignoreList);
    }

    setInvertSelection(Utils.getFlag('V', options));
  }