def main(dataset: str, target: str, symbol: str):
ds_service = DatasetService()
ds = ds_service.get_dataset(name=dataset, symbol=symbol)
fs = DatasetService.get_feature_selection(ds=ds, method='importances_shap', target='class')
# hierarchy = load_hierarchy(f"{dataset}_{target}_feature_hierarchy.yml", importances=fs.feature_importances)
# hdf = pd.DataFrame(hierarchy)
# fig = px.treemap(hdf, path=['category', 'subgroup', 'name'], values='importance')
# fig.show()
#
# fig = px.sunburst(hdf, path=['category', 'subgroup', 'name'], values='importance')
# fig.show()
shap_values, shap_expected_values = parse_shap_values(fs.shap_values)
X = ds_service.get_dataset_features(ds=ds, begin=fs.search_interval.begin, end=fs.search_interval.end)
y = ds_service.get_target(name='class', symbol=symbol, begin=fs.search_interval.begin, end=fs.search_interval.end)
fig = plt.figure()
plt.suptitle(f"Shap summary plot for {dataset}.{symbol} -> {target}")
shap.summary_plot(shap_values, X, class_names=["SELL", "HOLD", "BUY"], show=False, max_display=352, use_log_scale=True)
plt.tight_layout()
fig.show()
shap_dfs = []
for cls, arr in enumerate(shap_values):
class_df = pd.DataFrame(arr, columns=X.columns, index=X.index)
class_df.columns = [f"{c}_class{cls}" for c in class_df.columns]
shap_dfs.append(class_df)
shap_df = pd.concat(shap_dfs, axis='columns')
shap_df = shap_df.reindex(sorted(shap_df.columns), axis=1)
print(shap_df.head())
def main(dataset: str, target: str, pipeline: str):
shapes = []
ds_service = DatasetService()
m_service = ModelService()
for symbol in SYMBOLS:
print(f"Exporting shap dataframes for symbol {symbol}")
ds = ds_service.get_dataset(name=dataset, symbol=symbol)
fs = DatasetService.get_feature_selection(ds=ds,
method='importances_shap',
target=target)
X_all = ds_service.get_dataset_features(ds=ds, columns=fs.features)
y_all = ds_service.get_dataset_target(ds=ds, name=target)
model = m_service.get_model(pipeline=pipeline,
dataset=dataset,
target=target,
symbol=symbol)
for t in model.tests:
print(f"Loading estimators for test {t.window}")
estimators = ModelService.load_test_estimators(model=model, mt=t)
shaps = []
print(f"Calculating shap values...")
for est in tqdm(estimators):
est_class = y_all.loc[est.day]
shap_v, shap_exp = get_shap_values(estimator=est,
X=X_all.loc[est.day],
X_train=est.train_x,
bytes=False)
df = pd.DataFrame([shap_v],
index=[pd.to_datetime(est.day)],
columns=X_all.columns)
df['label'] = y_all.loc[est.day]
df['shap_expected'] = shap_exp
shaps.append(df)
print("Exporting dataframe..")
cdf = pd.concat(shaps, axis='index')
os.makedirs(f"data/shap_values/{dataset}/{target}/{pipeline}/",
exist_ok=True)
cdf.to_csv(
f"data/shap_values/{dataset}/{target}/{pipeline}/shap_test_{symbol}_Wdays{t.window['days']}.csv",
index_label='time')
print("Exported.")
# # Load day estimator
# est = load_estimator()
print(f"Plotted {symbol}")
class GridSearchService:
def __init__(self):
self.model_repo = ModelRepository()
self.model_service = ModelService()
self.dataset_service = DatasetService()
def create_parameters_search(self, model: Model, split: float,
**kwargs) -> ModelParameters:
ds = self.dataset_service.get_dataset(model.dataset, model.symbol)
splits = DatasetService.get_train_test_split_indices(ds, split)
# Features can either be a list of features to use, or a string
# If it is a string, and it is "latest", pick the latest
features = kwargs.get('features')
# if isinstance(features, str) and features == 'latest':
# if model.features:
# features = model.features[-1].features
# else:
# features = None
if features:
target = kwargs.get('target', 'class')
mf = DatasetService.get_feature_selection(
ds=ds, method=kwargs.get('features'), target=target)
if not mf:
raise MessageException(
f"Feature selection not found for {model.dataset}.{model.symbol} -> {target}!"
)
features = mf.features
# Determine K for K-fold cross validation based on dataset's sample count
# Train-test split for each fold is 80% train, the lowest training window for accurate results is 30 samples
# so we need X samples where X is given by the proportion:
# 30/0.8 = X/1; X= 30/0.8 = 37.5 ~ 40 samples per fold
X = 40
k = 5
# If samples per fold with 5-fold CV are too low, use 3-folds
if ds.count / k < X:
k = 3
# If samples are still too low, raise a value error
if ds.count / k < X and not kwargs.get("permissive"):
raise ValueError("Not enough samples to perform cross validation!")
result = ModelParameters(cv_interval=splits['train'],
cv_splits=k,
task_key=kwargs.get('task_key', str(uuid4())),
features=features or None)
return result
def _get_dataset_and_pipeline(self, model: Model, mp: ModelParameters,
**kwargs):
if not model.id: # Make sure the task exists
model = self.model_repo.create(model)
if self.model_repo.exist_parameters(model.id, mp.task_key):
logging.info("Model {} Grid search {} already executed!".format(
model.id, mp.task_key))
return mp
# Load dataset
X = self.dataset_service.get_features(model.dataset,
model.symbol,
mp.cv_interval.begin,
mp.cv_interval.end,
columns=mp.features)
y = self.dataset_service.get_target(model.target, model.symbol,
mp.cv_interval.begin,
mp.cv_interval.end)
unique, counts = np.unique(y, return_counts=True)
if len(unique) < 2:
logging.error(
"[{}-{}-{}-{}]Training data contains less than 2 classes: {}".
format(model.symbol, model.dataset, model.target,
model.pipeline, unique))
raise MessageException(
"Training data contains less than 2 classes: {}".format(
unique))
logging.info("Dataset loaded: X {} y {} (unique: {})".format(
X.shape, y.shape, unique))
# Load pipeline
pipeline_module = get_pipeline(model.pipeline)
return pipeline_module, X, y
def grid_search(self, model: Model, mp: ModelParameters,
**kwargs) -> ModelParameters:
pipeline_module, X, y = self._get_dataset_and_pipeline(model, mp)
tag = "{}-{}-{}-{}-{}" \
.format(model.symbol, model.dataset, model.target, model.pipeline, dict_hash(mp.parameters))
# Perform search
if not kwargs.get('halving'):
gscv = GridSearchCV(
estimator=pipeline_module.estimator,
param_grid=kwargs.get('parameter_grid',
pipeline_module.PARAMETER_GRID),
# cv=BlockingTimeSeriesSplit(n_splits=mp.cv_splits),
cv=StratifiedKFold(n_splits=mp.cv_splits),
scoring=get_precision_scorer(),
verbose=kwargs.get("verbose", 0),
n_jobs=kwargs.get("n_jobs", None),
refit=False)
else:
gscv = HalvingGridSearchCV(
estimator=pipeline_module.estimator,
param_grid=kwargs.get('parameter_grid',
pipeline_module.PARAMETER_GRID),
factor=2,
cv=BlockingTimeSeriesSplit(n_splits=mp.cv_splits),
scoring=get_precision_scorer(),
verbose=kwargs.get("verbose", 0),
n_jobs=kwargs.get("n_jobs",
cpu_count() / 2),
refit=False,
random_state=0)
try:
mp.start_at = get_timestamp() # Log starting timestamp
gscv.fit(X, y)
mp.end_at = get_timestamp() # Log ending timestamp
except SplitException as e:
logging.exception(
"Model {} splitting yields single-class folds!\n{}".format(
tag, e.message))
return mp # Fit failed, don't save this.
except ValueError as e:
logging.exception("Model {} raised ValueError!\n{}".format(tag, e))
return mp # Fit failed, don't save this.
# Collect results
results_df = pd.DataFrame(gscv.cv_results_)
# Update search request with results
mp.parameter_search_method = 'halving_grid_search' if kwargs.get(
'halving') else 'gridsearch'
mp.parameters = gscv.best_params_
mp.cv_results = results_df.to_dict()
mp.result_file = 'cv_results-{}.csv'.format(tag)
# Save grid search results on storage
if kwargs.get('save', True):
storage_service.upload_json_obj(mp.parameters,
'grid-search-results',
'parameters-{}.json'.format(tag))
storage_service.save_df(results_df, 'grid-search-results',
mp.result_file)
# Update model with the new results
self.model_repo.append_parameters(model.id, mp)
return mp
def random_search(self, model: Model, mp: ModelParameters,
**kwargs) -> ModelParameters:
pipeline_module, X, y = self._get_dataset_and_pipeline(model, mp)
tag = "{}-{}-{}-{}-{}" \
.format(model.symbol, model.dataset, model.target, model.pipeline, dict_hash(mp.parameters))
rscv = RandomizedSearchCV(estimator=pipeline_module.estimator,
param_distributions=kwargs.get(
'param_distributions',
pipeline_module.PARAMETER_DISTRIBUTION),
n_iter=kwargs.get('n_iter', 10),
cv=StratifiedKFold(n_splits=mp.cv_splits),
scoring=get_precision_scorer(),
verbose=kwargs.get("verbose", 0),
n_jobs=kwargs.get("n_jobs", None),
refit=False,
random_state=0)
try:
mp.start_at = get_timestamp() # Log starting timestamp
rscv.fit(X, y)
mp.end_at = get_timestamp() # Log ending timestamp
except SplitException as e:
logging.exception(
"Model {} splitting yields single-class folds!\n{}".format(
tag, e.message))
return mp # Fit failed, don't save this.
except ValueError as e:
logging.exception("Model {} raised ValueError!\n{}".format(tag, e))
return mp # Fit failed, don't save this.
# Collect results
results_df = pd.DataFrame(rscv.cv_results_)
# Update search request with results
mp.parameter_search_method = 'randomsearch'
mp.parameters = rscv.best_params_
mp.result_file = 'cv_results-{}.csv'.format(tag)
# Save grid search results on storage
if kwargs.get('save', True):
storage_service.upload_json_obj(mp.parameters,
'random-search-results',
'parameters-{}.json'.format(tag))
storage_service.save_df(results_df, 'random-search-results',
mp.result_file)
# Update model with the new results
self.model_repo.append_parameters(model.id, mp)
return mp
def grid_search_new(self, symbol: str, dataset: str, target: str,
pipeline: str, split: float,
feature_selection_method: str, **kwargs):
# Check if a model exists and has same search method
existing_model = self.model_service.get_model(pipeline=pipeline,
dataset=dataset,
target=target,
symbol=symbol)
if existing_model:
mp_exists = ModelService.get_model_parameters(existing_model,
method='gridsearch')
if mp_exists:
if kwargs.get('replace'):
self.model_service.remove_parameters(model=existing_model,
method='gridsearch')
else:
if kwargs.get('save'):
raise MessageException(
f"Grid search already performed for {pipeline}({dataset}.{symbol}) -> {target}"
)
# Retrieve dataset to use
ds = self.dataset_service.get_dataset(dataset, symbol)
# Determine cv_splits=K for K-fold cross validation based on dataset's sample count
# Train-test split for each fold is 80% train, the lowest training window for accurate results is 30 samples
# so we need X samples where X is given by the proportion:
# 30/0.8 = X/1; X= 30/0.8 = 37.5 ~ 40 samples per fold
X = 40
cv_splits = 5
# If samples per fold with 5-fold CV are too low, use 3-folds
if ds.count / cv_splits < X:
cv_splits = 3
# If samples are still too low, raise a value error
if ds.count / cv_splits < X and not kwargs.get("permissive"):
raise ValueError("Not enough samples to perform cross validation!")
# Determine split indices based on dataset
splits = DatasetService.get_train_test_split_indices(ds, split)
cv_interval = splits['train']
# Load dataset features by applying a specified feature selection method
X = self.dataset_service.get_dataset_features(
ds=ds,
begin=cv_interval['begin'],
end=cv_interval['end'],
method=feature_selection_method,
target=target)
y = self.dataset_service.get_target(
name=target,
symbol=symbol,
begin=cv_interval['begin'],
end=cv_interval['end'],
)
# Check number of samples for each class in training data, if less than 3 instances are present for
# each class, we're going to get a very unstable model (or no model at all for k-NN based algos)
unique, counts = np.unique(y, return_counts=True)
if len(unique) < 2:
logging.error(
"[{}-{}-{}-{}]Training data contains less than 2 classes: {}".
format(symbol, dataset, target, pipeline, unique))
raise MessageException(
"Training data contains less than 2 classes: {}".format(
unique))
logging.info("Dataset loaded: X {} y {} (unique: {})".format(
X.shape, y.shape, unique))
# Load pipeline algorithm and parameter grid
pipeline_module = get_pipeline(pipeline)
# Perform search
gscv = GridSearchCV(
estimator=pipeline_module.estimator,
param_grid=kwargs.get('parameter_grid',
pipeline_module.PARAMETER_GRID),
# cv=BlockingTimeSeriesSplit(n_splits=mp.cv_splits),
cv=StratifiedKFold(n_splits=cv_splits),
scoring=get_precision_scorer(),
verbose=kwargs.get("verbose", 0),
n_jobs=kwargs.get("n_jobs", None),
refit=False)
mp = ModelParameters(cv_interval=splits['train'],
cv_splits=cv_splits,
task_key=kwargs.get('task_key', str(uuid4())),
features=[c for c in X.columns],
parameter_search_method='gridsearch')
mp.start_at = get_timestamp()
gscv.fit(X, y)
mp.end_at = get_timestamp()
# Collect results
results_df = pd.DataFrame(gscv.cv_results_)
mp.parameters = gscv.best_params_
mp.cv_results = results_df.loc[:,
results_df.columns != 'params'].to_dict(
'records')
tag = "{}-{}-{}-{}-{}".format(symbol, dataset, target, pipeline,
dict_hash(mp.parameters))
mp.result_file = 'cv_results-{}.csv'.format(tag)
# Is there an existing model for this search?
model = Model(pipeline=pipeline,
dataset=dataset,
target=target,
symbol=symbol,
features=feature_selection_method)
model.parameters.append(mp)
self.model_repo.create(model)
# Save grid search results on storage
if kwargs.get('save', True):
storage_service.upload_json_obj(mp.parameters,
'grid-search-results',
'parameters-{}.json'.format(tag))
storage_service.save_df(results_df, 'grid-search-results',
mp.result_file)
return mp
def main(dataset: str, target: str):
num_shap_plots = 3
shap_show_count = 10
ds_service = DatasetService()
m_service = ModelService()
for pipeline in PIPELINES:
for symbol in SYMBOLS:
print(
f"Plotting shap dataframes for pipeline {pipeline} symbol {symbol}"
)
ds = ds_service.get_dataset(name=dataset, symbol=symbol)
fs = DatasetService.get_feature_selection(
ds=ds, method='importances_shap', target=target)
X_all = ds_service.get_dataset_features(ds=ds, columns=fs.features)
y_all = ds_service.get_dataset_target(ds=ds, name=target)
model = m_service.get_model(pipeline=pipeline,
dataset=dataset,
target=target,
symbol=symbol)
for t in model.tests:
placeholder = "{label}"
csv_name = f"data/shap_values/{dataset}/{target}/{pipeline}/shap_training_window_{symbol}_{placeholder}_Wdays{t.window['days']}_.csv"
expected_csv_name = csv_name.format(label='SHAP_expected')
print(f"Loading results for test {t.window}")
results = ModelService.parse_test_results(test=t)
exp_shap_df = pd.read_csv(expected_csv_name,
index_col='time',
parse_dates=True)
for cls, label in enumerate(["SELL", "HOLD", "BUY"]):
class_csv_name = csv_name.format(label=label)
cls_shap_df = pd.read_csv(class_csv_name,
index_col='time',
parse_dates=True)
cls_shap_df = cls_shap_df.loc[t.test_interval.begin:t.
test_interval.end]
x_train = X_all.loc[cls_shap_df.index]
chunk_size = int(cls_shap_df.shape[0] / num_shap_plots)
fig = plt.figure(constrained_layout=True,
figsize=(100, 50),
dpi=300) #
gs = GridSpec(3,
num_shap_plots,
figure=fig,
wspace=1.5,
hspace=0.3)
precision_ax = fig.add_subplot(gs[0, :])
shap_values_ax = fig.add_subplot(gs[1, :])
beeswarms_axs = [
fig.add_subplot(gs[2, i])
for i in range(num_shap_plots)
]
#format_axes(fig)
shap_plot_labels = set()
first_shap_day = results.iloc[0]['time'].replace(
'+00:00',
'').replace('T', '').replace(':', '').replace('-', '')
middle_shap_day = results.iloc[int(
results.shape[0] / 2)]['time'].replace(
'+00:00',
'').replace('T', '').replace(':',
'').replace('-', '')
last_shap_day = results.iloc[-1]['time'].replace(
'+00:00',
'').replace('T', '').replace(':', '').replace('-', '')
for idx, dayname in enumerate(
[first_shap_day, middle_shap_day, last_shap_day]):
day_csv_name = f"data/shap_values/{dataset}/{target}/{pipeline}/daily/shap_training_window_{symbol}_{label}_Wdays{t.window['days']}_DAY{dayname}.csv"
# Plot each section's SHAP values
cdf_subset = pd.read_csv(day_csv_name,
index_col='time',
parse_dates=True)
train_subset = X_all.loc[cdf_subset.index]
# Get a rank of feature labels based on this section's shap values
abs_mean_shap = cdf_subset.abs().mean(axis='index')
abs_mean_rank = abs_mean_shap.sort_values(
ascending=False)[:shap_show_count]
for l in abs_mean_rank.index:
# Save labels for features in the top-N
shap_plot_labels.add(l)
# Plot this section's SHAP values
plt.sca(beeswarms_axs[idx])
shap.summary_plot(cdf_subset.values,
train_subset,
max_display=shap_show_count,
show=False,
color_bar=False,
sort=True)
min_date = cdf_subset.index.min().to_pydatetime()
max_date = cdf_subset.index.max().to_pydatetime(
) + timedelta(days=1)
min_date_f = min_date.strftime("%Y/%m/%d")
max_date_f = max_date.strftime("%Y/%m/%d")
beeswarms_axs[idx].set_xlabel(
f"SHAP values\nWindow: {min_date_f} - {max_date_f}",
fontsize=8)
beeswarms_axs[idx].tick_params(axis='y',
which='major',
labelsize=6)
beeswarms_axs[idx].tick_params(axis='x',
which='major',
labelsize=8)
# Plot shap values
day_csv_name = f"data/shap_values/{dataset}/{target}/{pipeline}/shap_training_window_{symbol}_{label}_Wdays{t.window['days']}_.csv"
plot_cls_shap_df = pd.read_csv(day_csv_name,
index_col='time',
parse_dates=True)
def get_spread(series):
return np.abs(series.max() - series.min())
plot_rank = plot_cls_shap_df[list(shap_plot_labels)].apply(
get_spread, axis='index').sort_values(
ascending=False)[:shap_show_count]
plot_cls_shap_df['xlabel'] = [
t.to_pydatetime().strftime("%Y/%m/%d")
for t in plot_cls_shap_df.index
]
shap_ax = plot_cls_shap_df.plot(
x='xlabel',
y=[c for c in plot_rank.index],
kind='line',
ax=shap_values_ax,
legend=False,
xlabel='')
patches, labels = shap_ax.get_legend_handles_labels()
shap_ax.legend(patches,
labels,
loc='center left',
bbox_to_anchor=(1, 0.5),
prop={'size': 6})
shap_ax.tick_params(axis='x', which='major', labelsize=8)
shap_ax.set_ylabel('mean(|SHAP|)', fontsize=6)
#shap_ax.tick_params(labelbottom=False, labelleft=False)
# Get Metrics scores dataframe
cri_df = get_metrics_df(results).rolling(
7, min_periods=1).mean()
cri_df['xlabel'] = [
t.to_pydatetime().strftime("%Y/%m/%d")
for t in cri_df.index
]
cri_ax = cri_df.plot(x='xlabel',
y=f"pre_{cls}",
kind='line',
ax=precision_ax,
legend=False,
xlabel='')
patches, labels = cri_ax.get_legend_handles_labels()
cri_ax.legend(patches,
labels,
loc='center left',
bbox_to_anchor=(1, 0.5),
prop={'size': 6})
cri_ax.set_ylabel('mean(precision)', fontsize=6)
cri_ax.tick_params(labelbottom=False, labelleft=True)
min_date = cri_df.index.min().to_pydatetime().strftime(
"%Y/%m/%d")
max_date = cri_df.index.max().to_pydatetime().strftime(
"%Y/%m/%d")
window = t.window['days']
fig.suptitle(
f"{symbol}, {pipeline}, W={window}D, Class {label}, From {min_date} to {max_date}"
)
# fig.show()
os.makedirs(f"images/shap-test-final/", exist_ok=True)
plt.savefig(
f"images/shap-test-final/{pipeline}_W{window}D_{dataset}_{target}_{symbol}_{label}.png",
dpi='figure')
plt.close()
print(f"{label} OK")
print(f"Exported symbol {symbol}.")
# # Load day estimator
# est = load_estimator()
print(f"Plotted {symbol}")
def main(dataset: str, target: str, pipeline: str):
shapes = []
ds_service = DatasetService()
m_service = ModelService()
for symbol in SYMBOLS:
print(f"Exporting shap dataframes for symbol {symbol}")
ds = ds_service.get_dataset(name=dataset, symbol=symbol)
fs = DatasetService.get_feature_selection(ds=ds,
method='importances_shap',
target=target)
X_all = ds_service.get_dataset_features(ds=ds, columns=fs.features)
y_all = ds_service.get_dataset_target(ds=ds, name=target)
model = m_service.get_model(pipeline=pipeline,
dataset=dataset,
target=target,
symbol=symbol)
for t in model.tests:
os.makedirs(
f"data/shap_values/{dataset}/{target}/{pipeline}/daily",
exist_ok=True)
placeholder = "{label}"
csv_name = f"data/shap_values/{dataset}/{target}/{pipeline}/shap_training_window_{symbol}_{placeholder}_Wdays{t.window['days']}_.csv"
day_csv_name = f"data/shap_values/{dataset}/{target}/{pipeline}/daily/shap_training_window_{symbol}_{placeholder}_Wdays{t.window['days']}_"
print(f"Loading estimators for test {t.window}")
estimators = ModelService.load_test_estimators(model=model, mt=t)
results = ModelService.parse_test_results(test=t)
shaps = [[], [], []]
X_test = X_all.loc[t.test_interval.begin:t.test_interval.end]
shap_expected = []
print(f"Calculating shap values")
shap_abs_mean = [pd.DataFrame(), pd.DataFrame(), pd.DataFrame()]
for est in tqdm(estimators):
est_class = y_all.loc[est.day]
training_data = est.train_x.astype(np.float64).fillna(value=0)
shap_v, shap_exp = get_shap_values(estimator=est.named_steps.c,
X=training_data,
X_train=training_data,
bytes=False)
if isinstance(shap_exp, float):
shap_expected.append([est.day] + [0, 0, shap_exp])
else:
shap_expected.append([est.day] + [v for v in shap_exp])
for cls, label in enumerate(["SELL", "HOLD", "BUY"]):
df = pd.DataFrame(shap_v[cls],
index=est.train_x.index,
columns=est.train_x.columns)
# if not shaps[cls]: # If list is empty, append whole df
# shaps[cls].append(df)
# else:
# shaps[cls].append(df.iloc[-1:]) # otherwise only append new row (sliding window)
# Save shap values dataframe for each day
dayname = est.day.replace('+00:00',
'').replace('T', '').replace(
':', '').replace('-', '')
day_class_csv_name = day_csv_name.format(
label=label) + f"DAY{dayname}.csv"
df.to_csv(day_class_csv_name, index_label='time')
# Process data for next plot
df_abs_mean = df.abs().mean().to_dict()
df_abs_mean['time'] = est.day
shaps[cls].append(df_abs_mean)
# print(shap_abs_mean.head())
# Merge shap values in an unique dataframe and save to csv for each class
for cls, label in enumerate(["SELL", "HOLD", "BUY"]):
class_csv_name = csv_name.format(label=label)
print(
f"Exporting dataframe for class {label} -> {class_csv_name}"
)
# cdf = pd.concat(shaps[cls], axis='index')
cdf = pd.DataFrame.from_records(shaps[cls])
cdf.index = pd.to_datetime(cdf.time)
cdf = cdf[cdf.columns.difference(['time'])]
cdf.to_csv(class_csv_name, index_label='time')
expected_csv_name = csv_name.format(label='SHAP_expected')
print(
f"Exporting expected values dataframe -> {expected_csv_name}")
edf = pd.DataFrame(
shap_expected,
columns=[
"time", "shap_expected_sell", "shap_expected_hold",
"shap_expected_buy"
],
)
edf.to_csv(expected_csv_name, index_label='time')
print(f"Exported symbol {symbol}.")
# # Load day estimator
# est = load_estimator()
print(f"Plotted {symbol}")
def main(pipeline: str, dataset: str, symbol: str, window: int):
ds = DatasetService()
ms = ModelService()
ts = TradingService()
ohlcv_ds = ds.get_dataset('ohlcv', symbol=symbol)
asset = ts.get_asset(pipeline=pipeline,
dataset=dataset,
target='class',
symbol=symbol,
window=window,
create=False)
if not asset:
print(
f"Asset {pipeline}.{dataset}.class for {symbol} on window {window} not found!"
)
return
test = ms.get_test(pipeline=pipeline,
dataset=dataset,
target='class',
symbol=symbol,
window=window)
if not test:
print(
f"Test {pipeline}.{dataset}.class for {symbol} on window {window} not found!"
)
# ohlcv = ohlcv.loc[test.test_interval.begin:test.test_interval.end]
ohlcv = ds.get_dataset_features(ohlcv_ds,
begin=test.test_interval.begin,
end=test.test_interval.end)
test_results = ModelService.parse_test_results(test).iloc[:-1]
enc_label = onehot_target(test_results.label,
labels=["is_sell", "is_hold", "is_buy"],
fill=False)
enc_pred = onehot_target(test_results.predicted,
labels=["is_sell", "is_hold", "is_buy"],
fill=False)
# Mask predictions with low value minus a certain amount
signals_level_diff = ohlcv.low * 10 / 100
signals_level = ohlcv.low - signals_level_diff
#signals_level = ohlcv.low
enc_pred.is_sell.mask(enc_pred.is_sell > 0,
other=signals_level,
inplace=True)
enc_pred.is_hold.mask(enc_pred.is_hold > 0,
other=signals_level,
inplace=True)
enc_pred.is_buy.mask(enc_pred.is_buy > 0,
other=signals_level,
inplace=True)
# Get unique years in index to split plots in smaller scale
unique_years = ohlcv.index.year.unique()
for year in unique_years:
year_pred = enc_pred[enc_pred.index.year == year]
year_ohlcv = ohlcv[ohlcv.index.year == year]
# Set up xticks
daysToIndex = {
ts.to_pydatetime(): i
for i, ts in enumerate(year_ohlcv.index)
}
days = [i for i in daysToIndex.values()]
labels = [
ts.to_pydatetime().strftime("%Y-%m-%d") for ts in year_ohlcv.index
]
# Setup matplotfinance styles and figure
s = mpf.make_mpf_style(
base_mpf_style='binance') # , rc={'font.size': 6}
fig = mpf.figure(
figsize=(16, 8),
style=s) # pass in the self defined style to the whole canvas
fig.suptitle(f"{ohlcv_ds.symbol}, {year}, 1D")
ax = fig.add_subplot(3, 1, (1, 2)) # main candle stick chart subplot
av = fig.add_subplot(3, 1, 3, sharex=ax) # volume candles subplot
# Setup horizontal grids
ax.grid(axis='x', color='0.5', linestyle='--')
av.grid(axis='x', color='0.5', linestyle='--')
# for a in [ax, av]:
# a.set_xticks(ticks=days)
# a.set_xticklabels(labels=labels)
# a.tick_params(axis='x', labelrotation=90)
apds = [
# mpf.make_addplot(tcdf)
# Predictions
mpf.make_addplot(year_ohlcv.close,
ax=ax,
type='line',
color=(0.5, 0.5, 0.5, 0.05)),
mpf.make_addplot(year_pred.is_sell,
ax=ax,
type='scatter',
marker='v',
color='red'),
mpf.make_addplot(year_pred.is_hold,
ax=ax,
type='scatter',
marker='_',
color='silver'),
mpf.make_addplot(year_pred.is_buy,
ax=ax,
type='scatter',
marker='^',
color='lime'),
]
mpf.plot(
year_ohlcv,
type='candle',
style=s,
#ylabel='Price ($)',
ax=ax,
volume=av,
#ylabel_lower='Volume',
show_nontrading=True,
addplot=apds,
returnfig=True)
fig.autofmt_xdate()
fig.tight_layout()
plt.show()
print("Done")
def main(pipeline: str, dataset: str, symbol: str, window: int):
ds = DatasetService()
ms = ModelService()
ts = TradingService()
ohlcv_ds = ds.get_dataset('ohlcv', symbol=symbol)
ohlcv = ds.get_dataset_features(
ohlcv_ds) # [ohlcv_ds.valid_index_min:ohlcv_ds.valid_index_max]
# boll = pd.Series(percent_b(ohlcv.close, 21), index=ohlcv.index)
boll = pd.Series(to_discrete_double(percent_b(ohlcv.close, 21), 20, 80),
index=ohlcv.index).replace(to_replace=-1, value=np.nan)
#model = ms.get_model(pipeline, dataset, 'class', symbol)
_test = ms.get_test(pipeline, dataset, 'class', symbol, window)
for test in [
_test
]: # I originally traded all the tests in the model. ToDo: Refactor this.
# Re-convert classification results from test to a DataFrame
ohlcv_results = ohlcv[test.test_interval.begin:test.test_interval.end]
results = ModelService.parse_test_results(test)
#results.index = ohlcv_results.index
# Parse index so it's a DateTimeIndex, because Mongo stores it as a string
# results.index = pd.to_datetime(results.index)
asset = ts.get_asset(pipeline=pipeline,
dataset=dataset,
target='class',
symbol=symbol,
window=test.window['days'])
# Now use classification results to trade!
day_count = results.shape[0]
cur_day = 0
print(
"%B_Precision = {}",
precision_score(results.label,
boll.loc[results.index],
average='macro',
zero_division=0))
# Amount to buy in coins for buy and hold: $10k divided by first price in test set
bh_price = ohlcv.close.loc[test.test_interval.begin]
bh_amount = 10000 / bh_price
for index, pred in results.iterrows():
cur_day += 1
# Get simulation day by converting Pandas' Timestamp to our format
simulation_day = to_timestamp(index.to_pydatetime())
# Results dataframe interprets values as float, while they are actually int
predicted, label = int(pred.predicted), int(pred.label)
# Grab ohlcv values for current day
try:
values = ohlcv.loc[index]
except KeyError:
print(f"Day: {index} not in OHLCV index!")
continue
try:
boll_sig = boll.loc[
index] if boll.loc[index] != np.nan else None
except KeyError:
boll_sig = None
print(f"Day: {index} not in BOLL index!")
pass
_index = ohlcv.index.get_loc(index)
change = TradingService.get_percent_change(values.close,
values.open)
print(
f"Day {cur_day}/{day_count} [{index}] "
f"[O {values.open} H {values.high} L {values.low} C {values.close}] "
f"PCT={change}% "
f"LABEL={TARGETS[label]} BPRED={TARGETS[boll_sig]} PRED={TARGETS[predicted]}"
)
open_positions = ts.get_open_positions(asset=asset,
day=simulation_day)
for p in open_positions:
p_age = TradingService.get_position_age(position=p,
day=simulation_day)
try:
if p.type == 'MARGIN_LONG':
if TradingService.check_stop_loss(p, values.low):
ts.close_long(asset=asset,
day=simulation_day,
close_price=p.stop_loss,
position=p,
detail='Stop Loss')
elif TradingService.check_take_profit(p, values.high):
ts.close_long(asset=asset,
day=simulation_day,
close_price=p.take_profit,
position=p,
detail='Take Profit')
elif predicted == SELL:
ts.close_long(asset=asset,
day=simulation_day,
close_price=values.close,
position=p,
detail='Sell Signal')
elif predicted == HOLD and p_age > 86400 * 3:
ts.close_long(asset=asset,
day=simulation_day,
close_price=values.close,
position=p,
detail='Age')
elif predicted == BUY:
if change > 0:
ts.update_stop_loss(asset=asset,
position=p,
close_price=values.close,
pct=-0.05)
elif p.type == 'MARGIN_SHORT':
if TradingService.check_stop_loss(p, values.high):
ts.close_short(asset=asset,
day=simulation_day,
close_price=p.stop_loss,
position=p,
detail='Stop Loss')
elif TradingService.check_take_profit(p, values.low):
ts.close_short(asset=asset,
day=simulation_day,
close_price=p.take_profit,
position=p,
detail='Take Profit')
elif predicted == SELL:
# If we had some profit and signal is still SELL, book those by lowering stop loss
if change < 0:
ts.update_stop_loss(asset=asset,
position=p,
close_price=values.close,
pct=0.05)
elif predicted == HOLD and p_age > 86400 * 3:
ts.close_short(asset=asset,
day=simulation_day,
close_price=values.close,
position=p,
detail='Age')
elif predicted == BUY:
ts.close_short(asset=asset,
day=simulation_day,
close_price=values.close,
position=p,
detail='Buy Signal')
except MessageException as e:
print(f"Order handling exception: {e.message}")
try:
# If prediction is BUY (price will rise) then open a MARGIN LONG position
if predicted == BUY:
ts.open_long(asset=asset,
day=simulation_day,
close_price=values.close,
size=0.1,
stop_loss=-0.1,
take_profit=0.05)
# If prediction is SELL (price will drop) open a MARGIN SHORT position
elif predicted == SELL:
ts.open_short(asset=asset,
day=simulation_day,
close_price=values.close,
size=0.1,
stop_loss=0.1,
take_profit=-0.05)
except MessageException as e:
print(f"Order placement exception: {e.message}")
# If this is the last trading day of the period, close all open positions
if index.timestamp() == results.index[-1].timestamp():
print("Last trading day reached, liquidating all positions..")
open_positions = ts.get_open_positions(asset=asset,
day=simulation_day)
for p in open_positions:
try:
if p.type == 'MARGIN_LONG':
ts.close_long(asset=asset,
day=simulation_day,
close_price=values.close,
position=p,
detail='Liquidation')
elif p.type == 'MARGIN_SHORT':
ts.close_short(asset=asset,
day=simulation_day,
close_price=values.close,
position=p,
detail='Liquidation')
except MessageException as e:
print(f"Order liquidation exception: {e.message}")
# Update equity value for the asset
ts.update_equity(asset=asset,
day=simulation_day,
price=values.close)
# Update baseline values for the asset
ts.update_baseline(asset=asset,
day=simulation_day,
name='buy_and_hold',
value=values.close * bh_amount)
print("Timeframe done.")
def main(dataset: str, target: str):
# hierarchy = load_hierarchy(f"{dataset}_{target}_feature_hierarchy.yml")
# hdf = pd.DataFrame(hierarchy)
shapes = []
for symbol in SYMBOLS:
ds_service = DatasetService()
ds = ds_service.get_dataset(name=dataset, symbol=symbol)
fs = DatasetService.get_feature_selection(ds=ds,
method='importances_shap',
target=target)
shap_v, shap_exp = parse_shap_values(fs.shap_values)
X_train = ds_service.get_dataset_features(
ds=ds,
begin=fs.search_interval.begin,
end=fs.search_interval.end #,
#columns=fs.features
)
shapes.append(X_train.shape[0])
shap_0 = pd.DataFrame(shap_v[0],
index=X_train.index,
columns=X_train.columns)
shap_1 = pd.DataFrame(shap_v[1],
index=X_train.index,
columns=X_train.columns)
shap_2 = pd.DataFrame(shap_v[2],
index=X_train.index,
columns=X_train.columns)
sel_train = X_train[fs.features]
sel_shap_0 = shap_0[fs.features]
sel_shap_1 = shap_1[fs.features]
sel_shap_2 = shap_2[fs.features]
show_count = 50 #len(fs.features)
shap.summary_plot(sel_shap_0.values,
sel_train,
max_display=show_count,
show=False)
plt.tight_layout()
plt.title(
f"SHAP Summary plot for {symbol}, top {show_count} features for class SELL"
)
plt.savefig(
f"images/shap-global/{dataset}_{target}__shap__summary_plot_{symbol}_SELL_top{show_count}.png"
)
plt.close()
shap.summary_plot(sel_shap_1.values,
sel_train,
max_display=show_count,
show=False)
plt.tight_layout()
plt.title(
f"SHAP Summary plot for {symbol}, top {show_count} features for class HOLD"
)
plt.savefig(
f"images/shap-global/{dataset}_{target}__shap__summary_plot_{symbol}_HOLD_top{show_count}.png"
)
plt.close()
shap.summary_plot(sel_shap_2.values,
sel_train,
max_display=show_count,
show=False)
plt.tight_layout()
plt.title(
f"SHAP Summary plot for {symbol}, top {show_count} features for class BUY"
)
plt.savefig(
f"images/shap-global/{dataset}_{target}__shap__summary_plot_{symbol}_BUY_top{show_count}.png"
)
plt.close()
shap.summary_plot(np.abs(sel_shap_0.values),
sel_train,
max_display=show_count,
show=False)
plt.tight_layout()
plt.title(
f"Absolute SHAP Summary plot for {symbol}, top {show_count} features for class SELL"
)
plt.savefig(
f"images/shap-global/{dataset}_{target}__shap__summary_plot_{symbol}_SELL_abs_top{show_count}.png"
)
plt.close()
shap.summary_plot(np.abs(sel_shap_1.values),
sel_train,
max_display=show_count,
show=False)
plt.tight_layout()
plt.title(
f"Absolute SHAP Summary plot for {symbol}, top {show_count} features for class HOLD"
)
plt.savefig(
f"images/shap-global/{dataset}_{target}__shap__summary_plot_{symbol}_HOLD_abs_top{show_count}.png"
)
plt.close()
shap.summary_plot(np.abs(sel_shap_2.values),
sel_train,
max_display=show_count,
show=False)
plt.tight_layout()
plt.title(
f"Absolute SHAP Summary plot for {symbol}, top {show_count} features for class BUY"
)
plt.savefig(
f"images/shap-global/{dataset}_{target}__shap__summary_plot_{symbol}_BUY_abs_top{show_count}.png"
)
plt.close()
show_count = 25
shap.summary_plot(sel_shap_0.values,
sel_train,
max_display=show_count,
show=False)
plt.tight_layout()
plt.title(
f"SHAP Summary plot for {symbol}, top {show_count} features for class SELL"
)
plt.savefig(
f"images/shap-global/{dataset}_{target}__shap__summary_plot_{symbol}_SELL_top{show_count}.png"
)
plt.close()
shap.summary_plot(sel_shap_1.values,
sel_train,
max_display=show_count,
show=False)
plt.tight_layout()
plt.title(
f"SHAP Summary plot for {symbol}, top {show_count} features for class HOLD"
)
plt.savefig(
f"images/shap-global/{dataset}_{target}__shap__summary_plot_{symbol}_HOLD_top{show_count}.png"
)
plt.close()
shap.summary_plot(sel_shap_2.values,
sel_train,
max_display=show_count,
show=False)
plt.tight_layout()
plt.title(
f"SHAP Summary plot for {symbol}, top {show_count} features for class BUY"
)
plt.savefig(
f"images/shap-global/{dataset}_{target}__shap__summary_plot_{symbol}_BUY_top{show_count}.png"
)
plt.close()
shap.summary_plot(np.abs(sel_shap_0.values),
sel_train,
max_display=show_count,
show=False)
plt.tight_layout()
plt.title(
f"Absolute SHAP Summary plot for {symbol}, top {show_count} features for class SELL"
)
plt.savefig(
f"images/shap-global/{dataset}_{target}__shap__summary_plot_{symbol}_SELL_abs_top{show_count}.png"
)
plt.close()
shap.summary_plot(np.abs(sel_shap_1.values),
sel_train,
max_display=show_count,
show=False)
plt.tight_layout()
plt.title(
f"Absolute SHAP Summary plot for {symbol}, top {show_count} features for class HOLD"
)
plt.savefig(
f"images/shap-global/{dataset}_{target}__shap__summary_plot_{symbol}_HOLD_abs_top{show_count}.png"
)
plt.close()
shap.summary_plot(np.abs(sel_shap_2.values),
sel_train,
max_display=show_count,
show=False)
plt.tight_layout()
plt.title(
f"Absolute SHAP Summary plot for {symbol}, top {show_count} features for class BUY"
)
plt.savefig(
f"images/shap-global/{dataset}_{target}__shap__summary_plot_{symbol}_BUY_abs_top{show_count}.png"
)
plt.close()
print(f"Plotted {symbol}")
def main(dataset: str, target: str, pipeline: str):
hierarchy = load_hierarchy(f"{dataset}_{target}_feature_hierarchy.yml")
hdf = pd.DataFrame(hierarchy)
num_shap_plots = 3
shap_show_count = 10
ds_service = DatasetService()
m_service = ModelService()
for symbol in SYMBOLS:
print(f"Plotting shap dataframes for symbol {symbol}")
ds = ds_service.get_dataset(name=dataset, symbol=symbol)
fs = DatasetService.get_feature_selection(ds=ds,
method='importances_shap',
target=target)
X_all = ds_service.get_dataset_features(ds=ds, columns=fs.features)
y_all = ds_service.get_dataset_target(ds=ds, name=target)
model = m_service.get_model(pipeline=pipeline,
dataset=dataset,
target=target,
symbol=symbol)
for t in model.tests:
os.makedirs(
f"images/shap-test-hierarchy/{dataset}/{target}/{pipeline}/",
exist_ok=True)
placeholder = "{label}"
csv_name = f"data/shap_values/{dataset}/{target}/{pipeline}/shap_training_window_{symbol}_{placeholder}_Wdays{t.window['days']}_.csv"
expected_csv_name = csv_name.format(label='SHAP_expected')
print(f"Loading results for test {t.window}")
results = ModelService.parse_test_results(test=t)
exp_shap_df = pd.read_csv(expected_csv_name,
index_col='time',
parse_dates=True)
for cls, label in enumerate(["SELL", "HOLD", "BUY"]):
class_csv_name = csv_name.format(label=label)
cls_shap_df = pd.read_csv(class_csv_name,
index_col='time',
parse_dates=True)
cls_shap_df = cls_shap_df.loc[t.test_interval.begin:t.
test_interval.end]
x_train = X_all.loc[cls_shap_df.index]
chunk_size = int(cls_shap_df.shape[0] / num_shap_plots)
# fig = plt.figure(constrained_layout=True, figsize=(100, 50), dpi=300) #
# gs = GridSpec(3, num_shap_plots, figure=fig, wspace=1.5, hspace=0.3)
# precision_ax = fig.add_subplot(gs[0, :])
# shap_values_ax = fig.add_subplot(gs[1, :])
# beeswarms_axs = [fig.add_subplot(gs[2, i]) for i in range(num_shap_plots)]
# #format_axes(fig)
# shap_plot_labels = set()
# for idx, start in enumerate(range(0, cls_shap_df.shape[0], chunk_size)):
# end = start + chunk_size
# left = cls_shap_df.shape[0] - end
# if left > 0 and left < chunk_size:
# end += left
# elif left < 0:
# break
# # Plot each section's SHAP values
# cdf_subset = cls_shap_df.iloc[start:end]
# train_subset = x_train.iloc[start:end]
#
# # Get a rank of feature labels based on this section's shap values
# abs_mean_shap = cdf_subset.abs().mean(axis='index')
# abs_mean_rank = abs_mean_shap.sort_values(ascending=False)[:shap_show_count]
# for l in abs_mean_rank.index:
# # Save labels for features in the top-N
# shap_plot_labels.add(l)
#
# # Plot this section's SHAP values
# plt.sca(beeswarms_axs[idx])
# shap.summary_plot(
# cdf_subset.values,
# train_subset,
# max_display=shap_show_count,
# show=False,
# color_bar=False,
# sort=True
# )
# min_date = cdf_subset.index.min().to_pydatetime().strftime("%Y/%m/%d")
# max_date = cdf_subset.index.max().to_pydatetime().strftime("%Y/%m/%d")
# beeswarms_axs[idx].set_xlabel(f"SHAP values\n{min_date} - {max_date}", fontsize=8)
# beeswarms_axs[idx].tick_params(axis='y', which='major', labelsize=6)
# beeswarms_axs[idx].tick_params(axis='x', which='major', labelsize=8)
# # Plot shap values
# plot_cls_shap_df = cls_shap_df.abs().rolling(7, min_periods=1).mean()
# def get_spread(series):
# return np.abs(series.max() - series.min())
# plot_rank = plot_cls_shap_df[list(shap_plot_labels)].apply(get_spread, axis='index').sort_values(ascending=False)[:shap_show_count]
# plot_cls_shap_df['xlabel'] = [t.to_pydatetime().strftime("%Y/%m/%d") for t in plot_cls_shap_df.index]
# shap_ax = plot_cls_shap_df.plot(
# x='xlabel',
# y=[c for c in plot_rank.index],
# kind='line',
# ax=shap_values_ax,
# legend=False,
# xlabel=''
# )
# patches, labels = shap_ax.get_legend_handles_labels()
# shap_ax.legend(
# patches, labels,
# loc='center left', bbox_to_anchor=(1, 0.5), prop={'size': 6}
# )
# shap_ax.tick_params(axis='x', which='major', labelsize=8)
# shap_ax.set_ylabel('mean(|SHAP|)', fontsize=6)
# #shap_ax.tick_params(labelbottom=False, labelleft=False)
#
# # Get Metrics scores dataframe
# cri_df = get_metrics_df(results).rolling(7, min_periods=1).mean()
# cri_df['xlabel'] = [t.to_pydatetime().strftime("%Y/%m/%d") for t in cri_df.index]
# cri_ax = cri_df.plot(
# x='xlabel',
# y=f"pre_{cls}",
# kind='line',
# ax=precision_ax,
# legend=False,
# xlabel=''
# )
# patches, labels = cri_ax.get_legend_handles_labels()
# cri_ax.legend(
# patches, labels,
# loc='center left', bbox_to_anchor=(1, 0.5), prop={'size': 6}
# )
# cri_ax.set_ylabel('mean(precision)', fontsize=6)
# cri_ax.tick_params(labelbottom=False, labelleft=True)
#
# min_date = cri_df.index.min().to_pydatetime().strftime("%Y/%m/%d")
# max_date = cri_df.index.max().to_pydatetime().strftime("%Y/%m/%d")
# fig.suptitle(f"{pipeline}, {symbol}, class {label} tests from {min_date} to {max_date}")
#
# # fig.show()
# plt.savefig(
# f"images/shap-test/{pipeline}_{dataset}_{target}_{symbol}_{label}.png",
# dpi='figure'
# )
# plt.close()
print(f"{label} OK")
print(f"Exported symbol {symbol}.")
# # Load day estimator
# est = load_estimator()
print(f"Plotted {symbol}")
class FeatureSelectionService:
def __init__(self):
self.model_repo = ModelRepository()
self.dataset_service = DatasetService()
def create_features_search(self,
*,
symbol: str,
dataset: str,
target: str,
split: float,
method: str,
task_key: str = None) -> ModelFeatures:
ds = self.dataset_service.get_dataset(dataset, symbol)
splits = DatasetService.get_train_test_split_indices(ds, split)
result = ModelFeatures(dataset=dataset,
target=target,
symbol=symbol,
search_interval=splits['train'],
feature_selection_method=method,
task_key=task_key or str(uuid4()))
return result
def feature_selection(self, mf: ModelFeatures, **kwargs) -> ModelFeatures:
# Load dataset
X = self.dataset_service.get_features(mf.dataset,
mf.symbol,
mf.search_interval.begin,
mf.search_interval.end,
columns=mf.features)
y = self.dataset_service.get_target(mf.target, mf.symbol,
mf.search_interval.begin,
mf.search_interval.end)
unique, counts = np.unique(y, return_counts=True)
if len(unique) < 2:
logging.error(
"[{}-{}-{}]Training data contains less than 2 classes: {}".
format(mf.symbol, mf.dataset, mf.target, unique))
raise MessageException(
"Training data contains less than 2 classes: {}".format(
unique))
# Perform search
mf.start_at = get_timestamp() # Log starting timestamp
if not mf.feature_selection_method or mf.feature_selection_method == 'importances':
selector = select_from_model(X, y)
mf.feature_importances = label_feature_importances(
selector.estimator_, X.columns)
elif mf.feature_selection_method == 'importances_cv':
selector = select_from_model_cv(X, y)
mf.feature_importances = label_feature_importances(
selector.estimator_.best_estimator_, X.columns)
elif mf.feature_selection_method == 'fscore':
selector = select_percentile(X, y, percentile=10)
elif mf.feature_selection_method == 'relieff':
selector = select_relieff(X, y, percentile=10)
elif mf.feature_selection_method == 'multisurf':
selector = select_multisurf(X, y, percentile=10)
else:
raise NotFoundException(
"Cannot find feature selection method by {}".format(
mf.feature_selection_method))
mf.end_at = get_timestamp() # Log ending timestamp
# Update search request with results
mf.features = label_support(selector.get_support(), X.columns)
# Update model with the new results
if kwargs.get('save', True):
self.model_repo.append_features_query(
{
"dataset": mf.dataset,
"symbol": mf.symbol,
"target": mf.target
}, mf)
return mf
def get_available_symbols(self, dataset: str):
return self.dataset_service.get_dataset_symbols(name=dataset)
def feature_selection_new(self, *, symbol: str, dataset: str, target: str,
split: float, method: str,
**kwargs) -> ModelFeatures:
ds = self.dataset_service.get_dataset(dataset, symbol)
fs_exists = DatasetService.has_feature_selection(ds=ds,
method=method,
target=target)
if fs_exists:
if kwargs.get('replace'):
self.dataset_service.remove_feature_selection(ds=ds,
method=method,
target=target)
else:
if kwargs.get('save'):
raise MessageException(
f"Feature selection with method '{method}' alrady performed for '{dataset}.{symbol}' and target '{target}'"
)
splits = DatasetService.get_train_test_split_indices(ds, split)
fs = FeatureSelection(target=target,
method=method,
search_interval=splits['train'],
task_key=kwargs.get('task_key', str(uuid4())))
# Load dataset
X = self.dataset_service.get_dataset_features(
ds=ds, begin=fs.search_interval.begin, end=fs.search_interval.end)
y = self.dataset_service.get_dataset_target(
name=fs.target,
ds=ds,
begin=fs.search_interval.begin,
end=fs.search_interval.end)
unique, counts = np.unique(y, return_counts=True)
if len(unique) < 2:
logging.error(
"[{}-{}-{}]Training data contains less than 2 classes: {}".
format(symbol, dataset, target, unique))
raise MessageException(
"Training data contains less than 2 classes: {}".format(
unique))
# Perform search
fs.start_at = get_timestamp() # Log starting timestamp
if not fs.method or 'importances' in fs.method:
if '_cv' in fs.method:
selector = select_from_model_cv(X, y)
else:
selector = select_from_model(X, y)
fs.feature_importances = label_feature_importances(
selector.estimator_, X.columns)
if '_shap' in fs.method:
fs.shap_values = get_shap_values(
model=selector.estimator_.named_steps.c, X=X, X_train=X)
shap_values = parse_shap_values(fs.shap_values)
elif fs.method == 'fscore':
selector = select_percentile(X, y, percentile=10)
elif fs.method == 'relieff':
selector = select_relieff(X, y, percentile=10)
elif fs.method == 'multisurf':
selector = select_multisurf(X, y, percentile=10)
else:
raise NotFoundException(
"Cannot find feature selection method by {}".format(fs.method))
fs.end_at = get_timestamp() # Log ending timestamp
# Update search request with results
fs.features = label_support(selector.get_support(), X.columns)
if not kwargs.get('save'):
return fs
return self.dataset_service.append_feature_selection(ds, fs)
def main(dataset: str):
ds = DatasetService()
ms = ModelService()
ts = TradingService()
logs = []
for pipeline in PIPELINES:
for symbol in SYMBOLS:
for window in WINDOWS:
print(
f"PIPELINE: {pipeline} SYMBOL: {symbol} WINDOW: {window}")
ohlcv_ds = ds.get_dataset('ohlcv', symbol=symbol)
test = ms.get_test(pipeline=pipeline,
dataset=dataset,
target='class',
symbol=symbol,
window=window)
if not test:
print(
f"Test {pipeline}.{dataset}.class for {symbol} on window {window} not found!"
)
logs.append(
f"MISSING_TEST {pipeline} {dataset} {symbol} class {window} --features importances_shap --parameters gridsearch\n"
)
continue
asset = ts.get_asset(pipeline=pipeline,
dataset=dataset,
target='class',
symbol=symbol,
window=window,
create=False)
if not asset:
print(
f"Asset {pipeline}.{dataset}.class for {symbol} on window {window} not found!"
)
logs.append(
f"MISSING_ASSET {pipeline} {dataset} {symbol} {window}\n"
)
continue
equity = TradingService.parse_equity_df(asset=asset)
buy_and_hold = TradingService.parse_baseline_df(
asset=asset, name='buy_and_hold')
orders = TradingService.parse_orders_df(asset=asset)
# Map order position_id to numbers so we don't get a mess in the graph
position_uids = set(orders.position_id.values)
for i, uid in enumerate(position_uids):
orders.position_id.replace(to_replace=uid,
value=i,
inplace=True)
ohlcv = ds.get_dataset_features(ohlcv_ds,
begin=test.test_interval.begin,
end=test.test_interval.end)
test_results = ModelService.parse_test_results(test).iloc[:-1]
# Mask predictions with low value minus a certain amount
signals_level_diff = ohlcv.low * 10 / 100
signals_level = ohlcv.low - signals_level_diff
enc_pred = onehot_target(
test_results.predicted,
labels=["is_sell", "is_hold", "is_buy"],
fill=False)
# In case of classifier bias (due to input bias) some classes are ignored.
# In such cases, enc_pred won't contain the ignored classes.
# Add them back by nan-filling (never selected)
if hasattr(enc_pred, 'is_sell'):
use_idx = enc_pred.is_sell > 0
enc_pred.is_sell.mask(
use_idx,
other=signals_level.loc[enc_pred.index],
inplace=True)
else:
enc_pred['is_sell'] = pd.Series(np.nan,
index=enc_pred.index)
if hasattr(enc_pred, 'is_hold'):
enc_pred.is_hold.mask(
enc_pred.is_hold > 0,
other=signals_level.loc[enc_pred.index],
inplace=True)
else:
enc_pred['is_hold'] = pd.Series(np.nan,
index=enc_pred.index)
if hasattr(enc_pred, 'is_buy'):
enc_pred.is_buy.mask(
enc_pred.is_buy > 0,
other=signals_level.loc[enc_pred.index],
inplace=True)
else:
enc_pred['is_buy'] = pd.Series(np.nan,
index=enc_pred.index)
# Get unique years in index to split plots in smaller scale
unique_years = ohlcv.index.year.unique()
for year in unique_years:
year_ohlcv = ohlcv[ohlcv.index.year == year]
year_pred = enc_pred[enc_pred.index.year == year]
year_equity = equity[equity.index.year == year]
year_buy_and_hodl = buy_and_hold[buy_and_hold.index.year ==
year]
year_orders = orders[orders.index.year == year]
unique_quarters = year_ohlcv.index.quarter.unique()
for quarter in unique_quarters:
q_ohlcv = year_ohlcv[year_ohlcv.index.quarter ==
quarter]
q_pred = year_pred[year_pred.index.quarter == quarter]
q_equity = year_equity[year_equity.index.quarter ==
quarter]
q_orders = year_orders[year_orders.index.quarter ==
quarter]
q_buy_and_hodl = year_buy_and_hodl[
year_buy_and_hodl.index.quarter == quarter]
#f"{ohlcv_ds.symbol}, {year} - Q{quarter}, 1D", 'Trades', 'Equity'
img_path = f"images/backtests-final/{pipeline}-{dataset}-class-W{window}/{symbol}/"
img_name = f"trades-{year}-Q{quarter}.png"
if os.path.exists(f"{img_path}/{img_name}"):
print(f"[SKIP] File exists {img_path}/{img_name}")
continue
make_plot(
ohlcv=q_ohlcv,
orders=q_orders,
equity=q_equity,
baselines=[('Buy and Hold', q_buy_and_hodl)],
pred=q_pred,
signals_title=
f"{ohlcv_ds.symbol}, {pipeline}, W={window}D, {year} - Q{quarter}, 1D",
img_path=img_path,
img_name=img_name,
bollinger=True)
print(
f"{year}-Q{quarter} saved to {img_path}{img_name}")
with open(f"trading_plotly.{dataset}.log", "w") as f:
f.writelines(logs)
print("Logs saved")
