Esempio n. 1
0
 /**
  * Returns a parameter giving expressions for the error values associated with a given coordinate
  * axis, indexed by a table-identifying label. The value taken by this parameter is a string which
  * is either a single (symmetric) numeric error expression or two comma-separated error
  * expressions.
  *
  * @param axName axis label
  * @param tlabel table identifier
  * @return error pair parameter
  */
 private Parameter createErrorParameter(String axName, String tlabel) {
   Parameter param = new Parameter(axName.toLowerCase() + "error" + tlabel);
   param.setUsage("<expr>|[<lo-expr>],[<hi-expr>]");
   param.setPrompt("Error bound(s) in " + axName + " for table " + tlabel);
   param.setNullPermitted(true);
   param.setDescription(
       new String[] {
         "<p>Gives expressions for the errors on " + axName,
         "coordinates for table " + tlabel + ".",
         "The following forms are permitted:",
         "<ul>",
         "<li><code>&lt;expr&gt;</code>: symmetric error value</li>",
         "<li><code>&lt;lo-expr&gt;,&lt;hi-expr&gt;</code>:"
             + "distinct lower and upper error values</li>",
         "<li><code>&lt;lo-expr&gt;,</code>: lower error value only</li>",
         "<li><code>,&lt;hi-expr&gt;</code>: upper error value only</li>",
         "<li><code>null</code>: no errors</li>",
         "</ul>",
         "The expression in each case is a numeric algebraic expression",
         "based on column names",
         "as described in <ref id='jel'/>.",
         "</p>",
       });
   return param;
 }
Esempio n. 2
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 /**
  * Returns a parameter giving an expression for the coordinate values used by this axis. It is
  * indexed by a table-identifying label.
  *
  * @param tlabel table identifier
  * @return parameter giving JEL expression for coordinate data
  */
 public Parameter createCoordParameter(String tlabel) {
   Parameter param = new Parameter(axName_ + "data" + tlabel);
   param.setUsage("<expr>");
   param.setPrompt("Value to plot on " + axName_ + " axis" + " for table " + tlabel);
   param.setDescription(
       new String[] {
         "<p>Gives a column name or expression for the " + axName_,
         "axis data for table " + tlabel + ".",
         "The expression is a numeric algebraic expression",
         "based on column names",
         "as described in <ref id=\"jel\"/>",
         "</p>",
       });
   return param;
 }
Esempio n. 3
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 /**
  * Constructs a new subset inclusion expression parameter.
  *
  * @param stlabel table/subset parameter label
  * @return new subset expression parameter
  */
 private Parameter createSubsetExpressionParameter(String stlabel) {
   Parameter param = new Parameter(SUBSET_PREFIX + stlabel);
   param.setPrompt("Selection criterion for subset " + stlabel);
   param.setDescription(
       new String[] {
         "<p>Gives the selection criterion for the subset labelled",
         "\"<code>" + stlabel + "</code>\".",
         "This is a boolean expression which may be the name of",
         "a boolean-valued column or any other boolean-valued expression.",
         "Rows for which the expression evaluates true will be included",
         "in the subset, and those for which it evaluates false will not.",
         "</p>",
       });
   param.setUsage("<expr>");
   return param;
 }