public void shrink() {
if (!isCategorical) levelP = 10;
levelA = (String[]) Utils.resizeArray(levelA, levelP);
grpSize = (int[]) Utils.resizeArray(grpSize, levelP);
if (!isCategorical) {
levelP = 0;
dimThres = 10;
}
}
void expand() {
dimThres = (int) (1.5 * dimThres);
System.out.println("-- Expand to: " + dimThres);
levelA = (String[]) Utils.resizeArray(levelA, dimThres);
grpSize = (int[]) Utils.resizeArray(grpSize, dimThres);
}
