def write_prediction_to_table(dolt_context: DoltDT, reviews, labels,
predictions, table_name):
predictions = pd.Series(predictions).rename('predictions')
result = pd.concat([reviews, labels, predictions], axis=1)
dolt_context.write_table(table_name=table_name,
df=result,
pks=['review'])
def stats(self):
train_score = self.model.score(self.train_bigram, self.train_labels)
print("Train Score {}".format(round(train_score, 2)))
train_predictions = self.model.predict(self.train_bigram)
test_score = self.model.score(self.test_bigram, self.test_labels)
print("Test Score {}".format(round(test_score, 2)))
test_predictions = self.model.predict(self.test_bigram)
# Output the predictions to a result table
def write_prediction_to_table(dolt_context: DoltDT, reviews, labels,
predictions, table_name):
predictions = pd.Series(predictions).rename('predictions')
result = pd.concat([reviews, labels, predictions], axis=1)
dolt_context.write_table(table_name=table_name,
df=result,
pks=['review'])
with DoltDT(run=self,
doltdb_path=self.doltdb_path,
branch='vinai/add-rotten-data') as dolt:
write_prediction_to_table(dolt, self.train_reviews,
self.train_labels, train_predictions,
"train_results")
write_prediction_to_table(dolt, self.test_reviews,
self.test_labels, test_predictions,
"test_results")
self.next(self.end)
def middle(self):
with DoltDT(run=self) as dolt:
df = self.inp1 + self.inp2
dolt.write_table(table_name='baz', df=df, pks=['index'])
self.next(self.end)
def middle(self):
with DoltDT(run=self, database='foo', branch="master") as dolt:
df = self.df
df["B"] = df["B"].map(lambda x: x * 2)
dolt.write_table(table_name='baz', df=df, pks=['index'])
self.next(self.end)
def add_random(self):
import random
with DoltDT(run=self, doltdb_path='metaflow_movies') as dolt:
self.df['gross'] = self.df['gross'] + random.randint(1, 1000000)
dolt.write_table(table_name='movies',
df=self.df,
pks=['movie_title'])
self.next(self.end)
def start(self):
flow, run = self.flow_dep.split("/")
d = DoltRun(flow_name=flow, run_id=run)
f_input = d.reads[0]
f_output = d.writes[0]
with DoltDT(run=self) as dolt:
self.inp1 = dolt.read_table(f_input.table_name,
commit=f_input.commit)
self.inp2 = dolt.read_table(f_output.table_name,
commit=f_output.commit)
self.next(self.middle)
def start(self):
with DoltDT(run=self, database='foo', branch="master") as dolt:
self.df = dolt.read_table('bar')
first_run = Flow("SucceedsFirstDemo").latest_successful_run
first_run_ts = datetime.datetime.strptime(first_run.finished_at,
"%Y-%m-%dT%H:%M:%SZ")
one_minute_ago = datetime.datetime.now() + datetime.timedelta(
hours=8) - datetime.timedelta(minutes=1)
if first_run_ts < one_minute_ago:
raise Exception(
"Run `FirstDemo` within one minute of `SecondDemo`")
self.next(self.middle)
def start(self):
with DoltDT(run=self,
doltdb_path=self.doltdb_path,
branch='vinai/add-rotten-data') as dolt:
self.train_table = dolt.read_table('reviews_train')
self.test_table = dolt.read_table('reviews_test')
# Split the train and test into matrices and labels
self.train_reviews = self.train_table['review']
self.train_labels = self.train_table['sentiment']
self.test_reviews = self.test_table['review']
self.test_labels = self.test_table['sentiment']
self.next(self.bigram_representation)
def predict(self):
with DoltDT(run=self, doltdb_path='iris-model-results') as dolt:
self.model = pickle.load(open('model.p', 'rb'))
self.model_type = 'Decision Tree'
samples = self.test_set['sample']
y_true = self.test_set['species']
y_true = y_true.rename('labels')
test = self.test_set.drop(columns=['species', 'sample'])
predictions = pd.Series(self.model.predict(test))
predictions = predictions.rename('predictions')
self.result = pd.concat([samples, y_true, predictions], axis=1)
dolt.write_table(table_name='result', df=self.result, pks=['sample'])
self.next(self.end)
def start(self):
with DoltDT(run=self) as dolt:
self.df = dolt.read_table('bar')
self.next(self.middle)
def start(self):
# Start by getting original dataset
with DoltDT(run=self, database='iris-test') as dolt:
self.test_set = dolt.read_table('iris-test')
self.next(self.predict)
def start(self):
with DoltDT(run=self, database='foo', branch="master") as dolt:
self.df = dolt.read_table('bar', commit=self.bar_version)
self.next(self.middle)
def end(self):
with DoltDT(run=self, doltdb_path='iris-model-results') as dolt:
dolt.commit_table_writes()
def end(self):
with DoltDT(run=self, doltdb_path='metaflow_demo') as dolt:
dolt.commit_table_writes()