static void checkDataset() {
Attribute[] outputs = Attributes.getOutputAttributes();
if (outputs.length != 1) {
LogManager.printErr("Only datasets with one output are supported");
System.exit(1);
}
if (outputs[0].getType() != Attribute.NOMINAL) {
LogManager.printErr("Output attribute should be nominal");
System.exit(1);
}
Parameters.numClasses = outputs[0].getNumNominalValues();
Parameters.numAttributes = Attributes.getInputAttributes().length;
}
/**
* It does return a new header (not necessary the same header as the input file one). It only
* includes the valid attributes, those ones defined in @inputs and @outputs (or taken as that
* role following the keel format specification).
*
* @return a String with the new header
*/
public String getNewHeader() {
String line = "";
Attribute[] attrs = null;
// Getting the relation name and the attributes
if (storeAttributesAsNonStatic && attributes != null) {
line = "@relation " + attributes.getRelationName() + "\n";
attrs = attributes.getInputAttributes();
} else {
line = "@relation " + Attributes.getRelationName() + "\n";
attrs = Attributes.getInputAttributes();
}
for (int i = 0; i < attrs.length; i++) {
line += attrs[i].toString() + "\n";
}
// Gettin all the outputs attributes
if (storeAttributesAsNonStatic && attributes != null) {
attrs = attributes.getOutputAttributes();
line += attrs[0].toString() + "\n";
// Getting @inputs and @outputs
line += attributes.getInputHeader() + "\n";
line += attributes.getOutputHeader() + "\n";
} else {
attrs = Attributes.getOutputAttributes();
line += attrs[0].toString() + "\n";
// Getting @inputs and @outputs
line += Attributes.getInputHeader() + "\n";
line += Attributes.getOutputHeader() + "\n";
}
return line;
} // end getNewHeader