def _model_build(self, x, y, tframe, vframe, kwargs):
kwargs['training_frame'] = tframe
if vframe is not None: kwargs["validation_frame"] = vframe
if isinstance(y, int): y = tframe.names[y]
if y is not None: kwargs['response_column'] = y
if not isinstance(x, (list,tuple)): x=[x]
if isinstance(x[0], int):
x = [tframe.names[i] for i in x]
offset = kwargs["offset_column"]
folds = kwargs["fold_column"]
weights= kwargs["weights_column"]
ignored_columns = list(set(tframe.names) - set(x + [y,offset,folds,weights]))
kwargs["ignored_columns"] = None if ignored_columns==[] else [h2o.h2o._quoted(col) for col in ignored_columns]
kwargs = dict([(k, H2OEstimator._keyify_if_H2OFrame(kwargs[k])) for k in kwargs])
algo = self._compute_algo()
model = H2OJob(H2OConnection.post_json("ModelBuilders/"+algo, **kwargs), job_type=(algo+" Model Build"))
if self._future:
self._job = model
return
model.poll()
if '_rest_version' in list(kwargs.keys()): model_json = H2OConnection.get_json("Models/"+model.dest_key, _rest_version=kwargs['_rest_version'])["models"][0]
else: model_json = H2OConnection.get_json("Models/"+model.dest_key)["models"][0]
self._resolve_model(model.dest_key,model_json)
def get_grid(self, sort_by=None, decreasing=None):
"""
Retrieve an H2OGridSearch instance. Optionally specify a metric by which to sort models and a sort order.
Parameters
----------
sort_by : str, optional
A metric by which to sort the models in the grid space. Choices are "logloss", "residual_deviance", "mse", "auc", "r2", "accuracy", "precision", "recall", "f1", etc.
decreasing : bool, optional
Sort the models in decreasing order of metric if true, otherwise sort in increasing order (default).
Returns
-------
A new H2OGridSearch instance optionally sorted on the specified metric.
"""
if sort_by is None and decreasing is None: return self
grid_json = H2OConnection.get_json("Grids/"+self._id, sort_by=sort_by, decreasing=decreasing, _rest_version=99)
grid = H2OGridSearch(self.model, self.hyper_params, self._id)
grid.models = [h2o.get_model(key['name']) for key in grid_json['model_ids']] #reordered
first_model_json = H2OConnection.get_json("Models/"+grid_json['model_ids'][0]['name'], _rest_version=99)['models'][0]
model_class = H2OGridSearch._metrics_class(first_model_json)
m = model_class()
m._id = self._id
m._grid_json = grid_json
# m._metrics_class = metrics_class
m._parms = grid._parms
H2OEstimator.mixin(grid,model_class)
grid.__dict__.update(m.__dict__.copy())
return grid
def get_grid(self, sort_by=None, decreasing=None):
"""
Retrieve an H2OGridSearch instance. Optionally specify a metric by which to sort models and a sort order.
Parameters
----------
sort_by : str, optional
A metric by which to sort the models in the grid space. Choices are "logloss", "residual_deviance", "mse", "auc", "r2", "accuracy", "precision", "recall", "f1", etc.
decreasing : bool, optional
Sort the models in decreasing order of metric if true, otherwise sort in increasing order (default).
Returns
-------
A new H2OGridSearch instance optionally sorted on the specified metric.
"""
if sort_by is None and decreasing is None: return self
grid_json = H2OConnection.get_json("Grids/"+self._id, sort_by=sort_by, decreasing=decreasing, _rest_version=99)
grid = H2OGridSearch(self.model, self.hyper_params, self._id)
grid.models = [h2o.get_model(key['name']) for key in grid_json['model_ids']] #reordered
first_model_json = H2OConnection.get_json("Models/"+grid_json['model_ids'][0]['name'], _rest_version=99)['models'][0]
model_class = H2OGridSearch._metrics_class(first_model_json)
m = model_class()
m._id = self._id
m._grid_json = grid_json
# m._metrics_class = metrics_class
m._parms = grid._parms
H2OEstimator.mixin(grid,model_class)
grid.__dict__.update(m.__dict__.copy())
return grid
def init_h2o_context_locally():
jar_path = None
jarpaths = [os.path.join(sys.prefix, "sparkling_water_jar", "sparkling-water-all.jar"),
os.path.join(os.path.sep,"usr","local","sparkling_water_jar","sparkling-water-all.jar"),
os.path.join(sys.prefix, "local", "sparkling_water_jar", "sparkling-water-all.jar"),
os.path.join(site.USER_BASE, "sparkling_water_jar", "sparkling-water-all.jar")
]
if os.path.exists(jarpaths[0]): jar_path = jarpaths[0]
elif os.path.exists(jarpaths[1]): jar_path = jarpaths[1]
elif os.path.exists(jarpaths[2]): jar_path = jarpaths[2]
else: jar_path = jarpaths[3]
cmd = [os.environ['SPARK_HOME']+"/bin/spark-submit",
"--class", "water.SparklingWaterDriver",
"--master", "local-cluster[1,1,512]",
"--driver-class-path", jar_path,
"--conf", "spark.driver.extraJavaOptions=\"-XX:MaxPermSize=384m\"",
jar_path]
cwd = os.path.abspath(os.getcwd())
stdout_name = H2OConnection._tmp_file("stdout")
stdout_file = open(stdout_name, "w+b")
stderr_name = H2OConnection._tmp_file("stderr")
stderr_file = open(stderr_name, "w+b")
ip_port = []
if sys.platform == "win32":
p = subprocess.Popen(args=cmd, stdout=stdout_file, stderr=stderr_file, cwd=cwd, creationflags=subprocess.CREATE_NEW_PROCESS_GROUP)
ip_port = H2OContext.__get_local_ip_port(p, stderr_name)
else:
p = subprocess.Popen(args=cmd, stdout=stdout_file, stderr=stderr_file, cwd=cwd, preexec_fn=os.setsid)
ip_port = H2OContext.__get_local_ip_port(p, stderr_name)
return H2OContext(ip_port[0], ip_port[1])
def _model_build(self, x, y, tframe, vframe, kwargs):
kwargs['training_frame'] = tframe
if vframe is not None: kwargs["validation_frame"] = vframe
if isinstance(y, int): y = tframe.names[y]
if y is not None: kwargs['response_column'] = y
if not isinstance(x, (list,tuple)): x=[x]
if isinstance(x[0], int):
x = [tframe.names[i] for i in x]
offset = kwargs["offset_column"]
folds = kwargs["fold_column"]
weights= kwargs["weights_column"]
ignored_columns = list(set(tframe.names) - set(x + [y,offset,folds,weights]))
kwargs["ignored_columns"] = None if ignored_columns==[] else [h2o.h2o._quoted(col) for col in ignored_columns]
kwargs["interactions"] = None if ("interactions" not in kwargs or kwargs["interactions"] is None) else [h2o.h2o._quoted(col) for col in kwargs["interactions"]]
kwargs = dict([(k, H2OEstimator._keyify_if_H2OFrame(kwargs[k])) for k in kwargs]) # gruesome one-liner
algo = self._compute_algo()
model = H2OJob(H2OConnection.post_json("ModelBuilders/"+algo, **kwargs), job_type=(algo+" Model Build"))
if self._future:
self._job = model
return
model.poll()
if '_rest_version' in list(kwargs.keys()): model_json = H2OConnection.get_json("Models/"+model.dest_key, _rest_version=kwargs['_rest_version'])["models"][0]
else: model_json = H2OConnection.get_json("Models/"+model.dest_key)["models"][0]
self._resolve_model(model.dest_key,model_json)
def _model_build(self, x, y, tframe, vframe, kwargs):
kwargs['training_frame'] = tframe
if vframe is not None: kwargs["validation_frame"] = vframe
if isinstance(y, int): y = tframe.names[y]
if y is not None: kwargs['response_column'] = y
if not isinstance(x, (list,tuple)): x=[x]
if isinstance(x[0], int):
x = [tframe.names[i] for i in x]
offset = kwargs["offset_column"]
folds = kwargs["fold_column"]
weights= kwargs["weights_column"]
ignored_columns = list(set(tframe.names) - set(x + [y,offset,folds,weights]))
kwargs["ignored_columns"] = None if ignored_columns==[] else [h2o.h2o._quoted(col) for col in ignored_columns]
kwargs = dict([(k, kwargs[k].frame_id if isinstance(kwargs[k], H2OFrame) else kwargs[k]) for k in kwargs if kwargs[k] is not None]) # gruesome one-liner
algo = self.model._compute_algo() #unique to grid search
kwargs["_rest_version"] = 99 #unique to grid search
if self.grid_id is not None: kwargs["grid_id"] = self.grid_id
grid = H2OJob(H2OConnection.post_json("Grid/"+algo, **kwargs), job_type=(algo+" Grid Build"))
if self._future:
self._job = grid
return
grid.poll()
if '_rest_version' in list(kwargs.keys()):
grid_json = H2OConnection.get_json("Grids/"+grid.dest_key, _rest_version=kwargs['_rest_version'])
error_index = 0
if len(grid_json["failure_details"]) > 0:
print("Errors/Warnings building gridsearch model\n")
for error_message in grid_json["failure_details"]:
if isinstance(grid_json["failed_params"][error_index], dict):
for h_name in grid_json['hyper_names']:
print("Hyper-parameter: {0}, {1}".format(h_name, grid_json['failed_params'][error_index][h_name]))
if len(grid_json["failure_stack_traces"]) > error_index:
print("failure_details: {0}\nfailure_stack_traces: "
"{1}\n".format(error_message, grid_json['failure_stack_traces'][error_index]))
error_index += 1
else:
grid_json = H2OConnection.get_json("Grids/"+grid.dest_key)
self.models = [h2o.get_model(key['name']) for key in grid_json['model_ids']]
#get first model returned in list of models from grid search to get model class (binomial, multinomial, etc)
# sometimes no model is returned due to bad parameter values provided by the user.
if len(grid_json['model_ids']) > 0:
first_model_json = H2OConnection.get_json("Models/"+grid_json['model_ids'][0]['name'],
_rest_version=kwargs['_rest_version'])['models'][0]
self._resolve_grid(grid.dest_key, grid_json, first_model_json)
else:
raise ValueError("Gridsearch returns no model due to bad parameter values or other reasons....")
def _model_build(self, x, y, tframe, vframe, kwargs):
kwargs['training_frame'] = tframe
if vframe is not None: kwargs["validation_frame"] = vframe
if isinstance(y, int): y = tframe.names[y]
if y is not None: kwargs['response_column'] = y
if not isinstance(x, (list, tuple)): x = [x]
if isinstance(x[0], int):
x = [tframe.names[i] for i in x]
offset = kwargs["offset_column"]
folds = kwargs["fold_column"]
weights = kwargs["weights_column"]
ignored_columns = list(
set(tframe.names) - set(x + [y, offset, folds, weights]))
kwargs["ignored_columns"] = None if ignored_columns == [] else [
h2o.h2o._quoted(col) for col in ignored_columns
]
kwargs = dict([(k, kwargs[k].frame_id if isinstance(
kwargs[k], H2OFrame) else kwargs[k]) for k in kwargs
if kwargs[k] is not None]) # gruesome one-liner
algo = self.model._compute_algo() #unique to grid search
kwargs["_rest_version"] = 99 #unique to grid search
if self.grid_id is not None: kwargs["grid_id"] = self.grid_id
grid = H2OJob(H2OConnection.post_json("Grid/" + algo, **kwargs),
job_type=(algo + " Grid Build"))
if self._future:
self._job = grid
return
grid.poll()
if '_rest_version' in list(kwargs.keys()):
grid_json = H2OConnection.get_json(
"Grids/" + grid.dest_key,
_rest_version=kwargs['_rest_version'])
for error_message in grid_json["failure_details"]:
print(error_message)
else:
grid_json = H2OConnection.get_json("Grids/" + grid.dest_key)
self.models = [
h2o.get_model(key['name']) for key in grid_json['model_ids']
]
#get first model returned in list of models from grid search to get model class (binomial, multinomial, etc)
first_model_json = H2OConnection.get_json(
"Models/" + grid_json['model_ids'][0]['name'],
_rest_version=kwargs['_rest_version'])['models'][0]
self._resolve_grid(grid.dest_key, grid_json, first_model_json)
def getGLMRegularizationPath(model):
x = H2OConnection.get_json("GetGLMRegPath",model=model._model_json['model_id']['name'])
ns = x.pop('coefficient_names')
res = {'lambdas':x['lambdas'],'explained_deviance_train':x['explained_deviance_train'],'explained_deviance_valid':x['explained_deviance_valid']}
res['coefficients'] = [dict(zip(ns,y)) for y in x['coefficients']]
if 'coefficients_std' in x:
res['coefficients_std'] = [dict(zip(ns,y)) for y in x['coefficients_std']]
return res
def getGLMRegularizationPath(model):
x = H2OConnection.get_json("GetGLMRegPath",model=model._model_json['model_id']['name'])
ns = x.pop('coefficient_names')
res = {'lambdas':x['lambdas'],'explained_deviance_train':x['explained_deviance_train'],'explained_deviance_valid':x['explained_deviance_valid']}
res['coefficients'] = [dict(zip(ns,y)) for y in x['coefficients']]
if 'coefficients_std' in x:
res['coefficients_std'] = [dict(zip(ns,y)) for y in x['coefficients_std']]
return res
def makeGLMModel(model, coefs, threshold=.5):
model_json = H2OConnection.post_json(
"MakeGLMModel",
model=model._model_json['model_id']['name'],
names=list(coefs.keys()),
beta=list(coefs.values()),
threshold=threshold)
m = H2OGeneralizedLinearEstimator()
m._resolve_model(model_json['model_id']['name'], model_json)
return m
def makeGLMModel(model, coefs, threshold=.5):
"""
Create a custom GLM model using the given coefficients.
Needs to be passed source model trained on the dataset to extract the dataset information from.
@param model - source model, used for extracting dataset information
@param coefs - dictionary containing model coefficients
@param threshold - (optional, only for binomial) decision threshold used for classification
"""
model_json = H2OConnection.post_json("MakeGLMModel", model=model._model_json["model_id"]["name"],
names=list(coefs.keys()), beta=list(coefs.values()), threshold=threshold)
m = H2OGeneralizedLinearEstimator()
m._resolve_model(model_json["model_id"]["name"], model_json)
return m
def _model_build(self, x, y, tframe, vframe, kwargs):
kwargs['training_frame'] = tframe
if vframe is not None: kwargs["validation_frame"] = vframe
if isinstance(y, int): y = tframe.names[y]
if y is not None: kwargs['response_column'] = y
if not isinstance(x, (list,tuple)): x=[x]
if isinstance(x[0], int):
x = [tframe.names[i] for i in x]
offset = kwargs["offset_column"]
folds = kwargs["fold_column"]
weights= kwargs["weights_column"]
ignored_columns = list(set(tframe.names) - set(x + [y,offset,folds,weights]))
kwargs["ignored_columns"] = None if ignored_columns==[] else [h2o.h2o._quoted(col) for col in ignored_columns]
kwargs = dict([(k, kwargs[k].frame_id if isinstance(kwargs[k], H2OFrame) else kwargs[k]) for k in kwargs if kwargs[k] is not None]) # gruesome one-liner
algo = self.model._compute_algo() #unique to grid search
kwargs["_rest_version"] = 99 #unique to grid search
if self.grid_id is not None: kwargs["grid_id"] = self.grid_id
grid = H2OJob(H2OConnection.post_json("Grid/"+algo, **kwargs), job_type=(algo+" Grid Build"))
if self._future:
self._job = grid
return
grid.poll()
if '_rest_version' in list(kwargs.keys()):
grid_json = H2OConnection.get_json("Grids/"+grid.dest_key, _rest_version=kwargs['_rest_version'])
for error_message in grid_json["failure_details"]:
print(error_message)
else: grid_json = H2OConnection.get_json("Grids/"+grid.dest_key)
self.models = [h2o.get_model(key['name']) for key in grid_json['model_ids']]
#get first model returned in list of models from grid search to get model class (binomial, multinomial, etc)
first_model_json = H2OConnection.get_json("Models/"+grid_json['model_ids'][0]['name'], _rest_version=kwargs['_rest_version'])['models'][0]
self._resolve_grid(grid.dest_key, grid_json, first_model_json)
def getGLMRegularizationPath(model):
"""
Extract full regularization path explored during lambda search from glm model.
@param model - source lambda search model
"""
x = H2OConnection.get_json("GetGLMRegPath", model=model._model_json["model_id"]["name"])
ns = x.pop("coefficient_names")
res = {
"lambdas": x["lambdas"],
"explained_deviance_train": x["explained_deviance_train"],
"explained_deviance_valid": x["explained_deviance_valid"],
"coefficients": [dict(zip(ns,y)) for y in x["coefficients"]],
}
if "coefficients_std" in x:
res["coefficients_std"] = [dict(zip(ns,y)) for y in x["coefficients_std"]]
return res
def makeGLMModel(model, coefs, threshold=.5):
"""
Create a custom GLM model using the given coefficients.
Needs to be passed source model trained on the dataset to extract the dataset information from.
@param model - source model, used for extracting dataset information
@param coefs - dictionary containing model coefficients
@param threshold - (optional, only for binomial) decision threshold used for classification
"""
model_json = H2OConnection.post_json(
"MakeGLMModel",
model=model._model_json["model_id"]["name"],
names=list(coefs.keys()),
beta=list(coefs.values()),
threshold=threshold)
m = H2OGeneralizedLinearEstimator()
m._resolve_model(model_json["model_id"]["name"], model_json)
return m
def getGLMRegularizationPath(model):
"""
Extract full regularization path explored during lambda search from glm model.
@param model - source lambda search model
"""
x = H2OConnection.get_json("GetGLMRegPath",
model=model._model_json["model_id"]["name"])
ns = x.pop("coefficient_names")
res = {
"lambdas": x["lambdas"],
"explained_deviance_train": x["explained_deviance_train"],
"explained_deviance_valid": x["explained_deviance_valid"],
"coefficients": [dict(zip(ns, y)) for y in x["coefficients"]],
}
if "coefficients_std" in x:
res["coefficients_std"] = [
dict(zip(ns, y)) for y in x["coefficients_std"]
]
return res
def makeGLMModel(model, coefs, threshold=.5):
model_json = H2OConnection.post_json("MakeGLMModel",model=model._model_json['model_id']['name'], names=list(coefs.keys()), beta = list(coefs.values()), threshold = threshold)
m = H2OGeneralizedLinearEstimator()
m._resolve_model(model_json['model_id']['name'], model_json)
return m
def _model_build(self, x, y, tframe, vframe, kwargs):
kwargs['training_frame'] = tframe
if vframe is not None: kwargs["validation_frame"] = vframe
if isinstance(y, int): y = tframe.names[y]
if y is not None: kwargs['response_column'] = y
if not isinstance(x, (list, tuple)): x = [x]
if isinstance(x[0], int):
x = [tframe.names[i] for i in x]
offset = kwargs["offset_column"]
folds = kwargs["fold_column"]
weights = kwargs["weights_column"]
ignored_columns = list(
set(tframe.names) - set(x + [y, offset, folds, weights]))
kwargs["ignored_columns"] = None if ignored_columns == [] else [
h2o.h2o._quoted(col) for col in ignored_columns
]
kwargs = dict([(k, kwargs[k].frame_id if isinstance(
kwargs[k], H2OFrame) else kwargs[k]) for k in kwargs
if kwargs[k] is not None]) # gruesome one-liner
algo = self.model._compute_algo() #unique to grid search
kwargs["_rest_version"] = 99 #unique to grid search
if self.grid_id is not None: kwargs["grid_id"] = self.grid_id
grid = H2OJob(H2OConnection.post_json("Grid/" + algo, **kwargs),
job_type=(algo + " Grid Build"))
if self._future:
self._job = grid
return
grid.poll()
if '_rest_version' in list(kwargs.keys()):
grid_json = H2OConnection.get_json(
"Grids/" + grid.dest_key,
_rest_version=kwargs['_rest_version'])
error_index = 0
if len(grid_json["failure_details"]) > 0:
print("Errors/Warnings building gridsearch model\n")
for error_message in grid_json["failure_details"]:
if isinstance(grid_json["failed_params"][error_index],
dict):
for h_name in grid_json['hyper_names']:
print("Hyper-parameter: {0}, {1}".format(
h_name, grid_json['failed_params'][error_index]
[h_name]))
print("failure_details: {0}\nfailure_stack_traces: "
"{1}\n".format(
error_message,
grid_json['failure_stack_traces'][error_index]))
error_index += 1
else:
grid_json = H2OConnection.get_json("Grids/" + grid.dest_key)
self.models = [
h2o.get_model(key['name']) for key in grid_json['model_ids']
]
#get first model returned in list of models from grid search to get model class (binomial, multinomial, etc)
# sometimes no model is returned due to bad parameter values provided by the user.
if len(grid_json['model_ids']) > 0:
first_model_json = H2OConnection.get_json(
"Models/" + grid_json['model_ids'][0]['name'],
_rest_version=kwargs['_rest_version'])['models'][0]
self._resolve_grid(grid.dest_key, grid_json, first_model_json)
else:
raise ValueError(
"Gridsearch returns no model due to bad parameter values or other reasons...."
)
def init_scala_int_session():
res = H2OConnection.post("scalaint")
session_id = res.json()["session_id"]
return session_id
