public GLMOutput(GLM glm) {
super(glm);
_dinfo = glm._dinfo;
if (!glm.hasWeightCol()) {
_dinfo = (DataInfo) _dinfo.clone();
_dinfo._adaptedFrame =
new Frame(_dinfo._adaptedFrame.names().clone(), _dinfo._adaptedFrame.vecs().clone());
_dinfo.dropWeights();
}
_scoringDinfo = _dinfo.scoringInfo();
String[] cnames = glm._dinfo.coefNames();
String[] names = _dinfo._adaptedFrame._names;
String[][] domains = _dinfo._adaptedFrame.domains();
int id = glm._generatedWeights == null ? -1 : ArrayUtils.find(names, glm._generatedWeights);
if (id >= 0) {
String[] ns = new String[names.length - 1];
String[][] ds = new String[domains.length - 1][];
System.arraycopy(names, 0, ns, 0, id);
System.arraycopy(domains, 0, ds, 0, id);
System.arraycopy(names, id + 1, ns, id, ns.length - id);
System.arraycopy(domains, id + 1, ds, id, ds.length - id);
names = ns;
domains = ds;
}
_names = names;
_domains = domains;
_coefficient_names = Arrays.copyOf(cnames, cnames.length + 1);
_coefficient_names[_coefficient_names.length - 1] = "Intercept";
_binomial = glm._parms._family == Family.binomial;
_nclasses = glm.nclasses();
_multinomial = _nclasses > 2;
}
/**
* Convert a collection of hyper-parameter search arrays into a double- dimension
* array-of-doubles. Missing hyper parms will be filled in with the default value.
*
* @param hypers A set of {hyper-parameter field names, search space values}
* @return The same set as a double[][]
*/
private double[][] hyper2doubles(Map<String, Object[]> hypers) {
String[] ss = hyperNames();
double[] defs = hyperDefaults();
double[][] dss = new double[ss.length][];
int cnt = 0; // Count of found hyper parameters
for (int i = 0; i < ss.length; i++) { // For all hyper-names
Object[] os = hypers != null ? hypers.get(ss[i]) : null; // Get an array-of-something
if (os == null) os = new Object[] {defs[i]}; // Missing? Use default
else cnt++; // Found a hyper parameter
double[] ds = dss[i] = new double[os.length]; // Array of params for search
for (int j = 0; j < os.length; j++) ds[j] = ReflectionUtils.asDouble(os[j]);
}
if (hypers != null && cnt != hypers.size()) // Quicky error check for unknow parms
for (String s : hypers.keySet())
if (ArrayUtils.find(ss, s) == -1)
throw new IllegalArgumentException("Unkown hyper-parameter " + s);
return dss;
}