protected void initStats(final CoxPHModel model, final DataInfo dinfo) {
CoxPHModel.CoxPHParameters p = model._parms;
CoxPHModel.CoxPHOutput o = model._output;
o.n = p.stop_column.length();
o.data_info = dinfo;
final int n_offsets = (p.offset_columns == null) ? 0 : p.offset_columns.length;
final int n_coef = o.data_info.fullN() - n_offsets;
final String[] coefNames = o.data_info.coefNames();
o.coef_names = new String[n_coef];
System.arraycopy(coefNames, 0, o.coef_names, 0, n_coef);
o.coef = MemoryManager.malloc8d(n_coef);
o.exp_coef = MemoryManager.malloc8d(n_coef);
o.exp_neg_coef = MemoryManager.malloc8d(n_coef);
o.se_coef = MemoryManager.malloc8d(n_coef);
o.z_coef = MemoryManager.malloc8d(n_coef);
o.gradient = MemoryManager.malloc8d(n_coef);
o.hessian = malloc2DArray(n_coef, n_coef);
o.var_coef = malloc2DArray(n_coef, n_coef);
o.x_mean_cat = MemoryManager.malloc8d(n_coef - (o.data_info._nums - n_offsets));
o.x_mean_num = MemoryManager.malloc8d(o.data_info._nums - n_offsets);
o.mean_offset = MemoryManager.malloc8d(n_offsets);
o.offset_names = new String[n_offsets];
System.arraycopy(coefNames, n_coef, o.offset_names, 0, n_offsets);
final Vec start_column = p.start_column;
final Vec stop_column = p.stop_column;
o.min_time =
p.start_column == null ? (long) stop_column.min() : (long) start_column.min() + 1;
o.max_time = (long) stop_column.max();
final int n_time = new Vec.CollectDomain().doAll(stop_column).domain().length;
o.time = MemoryManager.malloc8(n_time);
o.n_risk = MemoryManager.malloc8d(n_time);
o.n_event = MemoryManager.malloc8d(n_time);
o.n_censor = MemoryManager.malloc8d(n_time);
o.cumhaz_0 = MemoryManager.malloc8d(n_time);
o.var_cumhaz_1 = MemoryManager.malloc8d(n_time);
o.var_cumhaz_2 = malloc2DArray(n_time, n_coef);
}
