def encoder_for(field):
if field.get('optype') != 'categorical':
return 'passthrough'
encoder = OneHotEncoder()
encoder.categories_ = np.array([self.field_mapping[field.get('name')][1].categories])
encoder._legacy_mode = False
return encoder
def load_from_json(self, fname):
# load the model
import_data = json_tricks.load(open(fname))
import_clf = ModifiedNB()
import_clf.class_count_ = import_data['class_count_']
import_clf.class_log_prior_ = import_data['class_log_prior_']
import_clf.classes_ = import_data['classes_']
import_clf.feature_count_ = import_data['feature_count_']
import_clf.feature_log_prob_ = import_data['feature_log_prob_']
self.clf = import_clf
# load the fps dict vectoriser
v_fps = DictVectorizer()
dv = import_data['fps_vectoriser']
v_fps.vocabulary_ = {int(k): v for k, v in dv['vocabulary_'].items()}
v_fps.feature_names_ = dv['feature_names_']
self.v_fps = v_fps
# load the continous variables binariser
try:
binariser = import_data['binariser']
kbd = KBinsDiscretizer(n_bins=10,
encode='onehot',
strategy='quantile')
kbd.n_bins = binariser['n_bins']
kbd.n_bins_ = binariser['n_bins_']
kbd.bin_edges_ = np.asarray(
[np.asarray(x) for x in binariser['bin_edges_']])
encoder = OneHotEncoder()
encoder.categories = binariser['categories']
encoder._legacy_mode = False
kbd._encoder = encoder
self.kbd = kbd
except Exception as e:
pass
# extra parameters
self.trained = True
self.con_desc_list = import_data['con_desc_list']
self.fp_type = import_data['fp_type']
self.fp_radius = import_data['fp_radius']
self.informative_cvb = import_data['informative_cvb']