/**
* 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><expr></code>: symmetric error value</li>",
"<li><code><lo-expr>,<hi-expr></code>:"
+ "distinct lower and upper error values</li>",
"<li><code><lo-expr>,</code>: lower error value only</li>",
"<li><code>,<hi-expr></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;
}
/**
* Constructor.
*
* @param axName axis name
*/
public AxisParameterSet(String axName) {
axName_ = axName.toLowerCase();
loParam_ = new DoubleParameter(axName_ + "lo");
loParam_.setPrompt("Lower bound for " + axName_ + " axis");
loParam_.setDescription(
new String[] {
"<p>The lower limit for the plotted " + axName_ + " axis.",
"If not set, a value will be chosen which is low enough",
"to accommodate all the data.",
"</p>",
});
loParam_.setNullPermitted(true);
hiParam_ = new DoubleParameter(axName_ + "hi");
hiParam_.setPrompt("Upper bound for " + axName_ + " axis");
hiParam_.setDescription(
new String[] {
"<p>The upper limit for the plotted " + axName_ + " axis.",
"If not set, a value will be chosen which is high enough",
"to accommodate all the data.",
"</p>",
});
hiParam_.setNullPermitted(true);
logParam_ = new BooleanParameter(axName_ + "log");
logParam_.setPrompt("Logarithmic scale on " + axName_ + " axis?");
logParam_.setDescription(
new String[] {
"<p>If false (the default), the scale on the " + axName_,
"axis is linear; if true it is logarithmic.",
"</p>",
});
logParam_.setDefault("false");
flipParam_ = new BooleanParameter(axName_ + "flip");
flipParam_.setPrompt("Reversed direction on " + axName_ + "axis?");
flipParam_.setDescription(
new String[] {
"<p>If set true, the scale on the " + axName_ + " axis",
"will increase in the opposite sense from usual",
"(e.g. right to left rather than left to right).",
"</p>",
});
flipParam_.setDefault("false");
labelParam_ = new Parameter(axName_ + "label");
labelParam_.setPrompt("Label for axis " + axName_);
labelParam_.setDescription(
new String[] {
"<p>Specifies a label to be used for annotating axis " + axName_ + ".",
"A default values based on the plotted data will be used",
"if no value is supplied for this parameter.",
"</p>",
});
labelParam_.setNullPermitted(true);
}
/**
* Constructs a new subset name parameter.
*
* @param stlabel table/subset parameter label
* @return new subset name parameter
*/
private Parameter createSubsetNameParameter(String stlabel) {
Parameter nameParam = new Parameter(STYLE_PREFIX + "name" + stlabel);
nameParam.setNullPermitted(true);
nameParam.setPrompt("Label for subset " + stlabel);
nameParam.setDescription(
new String[] {
"<p>Provides a name to use for a subset with the symbolic label",
stlabel + ".",
"This name will be used for display in the legend,",
"if one is displayed.",
"</p>",
});
return nameParam;
}
/**
* Constructs a new text label expression parameter.
*
* @param tlabel table parameter label
* @return new text label expression parameter
*/
private Parameter createLabelParameter(String tlabel) {
Parameter labelParam = new Parameter("txtlabel" + tlabel);
labelParam.setPrompt("Label annotating each plotted point");
labelParam.setDescription(
new String[] {
"<p>Gives an expression which will label each plotted point.",
"If given, the text (or number) resulting from evaluating",
"the expression will be written near each point which is",
"plotted.",
"</p>",
});
labelParam.setNullPermitted(true);
return labelParam;
}
/**
* 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;
}
/**
* 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;
}