def __setitem__(self, fieldId, val):
""" Item assignment on formdata. Setting the value of a non existing
field is NOT an error... """
if not fieldId in self._fields:
self._fields[fieldId] = Field(fieldId, val)
else:
self._fields[fieldId].value = val
def update(self, data, ignore_missing=True):
""" Update self with fields from data arg """
for field_id in data.getFields():
field = data.getField(field_id)
if self.getField(field_id):
self.getField(field_id).value = field.value
else:
if not ignore_missing:
self.addField(Field(field.id, field.value))
def apply(self, features: List[Field]):
out_pcs = self.pca_obj.transform(
pd.concat([feature.data for feature in features], axis=1).values)
out_df = pd.DataFrame(out_pcs,
columns=[
self.component_prefix + str(i)
for i in range(out_pcs.shape[1])
])
return [Field.from_data_frame(col, out_df) for col in out_df]
def add_from_data_frame(self, df, exclude_fields, factor_fields=()):
factor_fields = set(factor_fields)
for col in df:
if col in exclude_fields:
continue
field = Field.from_data_frame(col, df)
if field.name in factor_fields:
field.reset_meta(isFactor=True)
self.field_map[field.name] = field
def predict(self, features: [Field]):
return self.model.predict(Field.to_array(features)).flatten()