本文整理汇总了Python中sklearn.linear_model.logistic.LogisticRegression.sparsify方法的典型用法代码示例。如果您正苦于以下问题：Python LogisticRegression.sparsify方法的具体用法？Python LogisticRegression.sparsify怎么用？Python LogisticRegression.sparsify使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类sklearn.linear_model.logistic.LogisticRegression的用法示例。
在下文中一共展示了LogisticRegression.sparsify方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: test_sparsify
# 需要导入模块: from sklearn.linear_model.logistic import LogisticRegression [as 别名]
# 或者: from sklearn.linear_model.logistic.LogisticRegression import sparsify [as 别名]
def test_sparsify():
# Test sparsify and densify members.
n_samples, n_features = iris.data.shape
target = iris.target_names[iris.target]
clf = LogisticRegression(random_state=0).fit(iris.data, target)
pred_d_d = clf.decision_function(iris.data)
clf.sparsify()
assert_true(sp.issparse(clf.coef_))
pred_s_d = clf.decision_function(iris.data)
sp_data = sp.coo_matrix(iris.data)
pred_s_s = clf.decision_function(sp_data)
clf.densify()
pred_d_s = clf.decision_function(sp_data)
assert_array_almost_equal(pred_d_d, pred_s_d)
assert_array_almost_equal(pred_d_d, pred_s_s)
assert_array_almost_equal(pred_d_d, pred_d_s)示例2: test_fit_credit_backupsklearn
# 需要导入模块: from sklearn.linear_model.logistic import LogisticRegression [as 别名]
# 或者: from sklearn.linear_model.logistic.LogisticRegression import sparsify [as 别名]
def test_fit_credit_backupsklearn():
df = pd.read_csv("./open_data/creditcard.csv")
X = np.array(df.iloc[:, :df.shape[1] - 1], dtype='float32', order='C')
y = np.array(df.iloc[:, df.shape[1] - 1], dtype='float32', order='C')
Solver = h2o4gpu.LogisticRegression
enet_h2o4gpu = Solver(glm_stop_early=False)
print("h2o4gpu fit()")
enet_h2o4gpu.fit(X, y)
print("h2o4gpu predict()")
print(enet_h2o4gpu.predict(X))
print("h2o4gpu score()")
print(enet_h2o4gpu.score(X,y))
enet = Solver(dual=True, max_iter=100, tol=1E-4, intercept_scaling=0.99, random_state=1234)
print("h2o4gpu scikit wrapper fit()")
enet.fit(X, y)
print("h2o4gpu scikit wrapper predict()")
print(enet.predict(X))
print("h2o4gpu scikit wrapper predict_proba()")
print(enet.predict_proba(X))
print("h2o4gpu scikit wrapper predict_log_proba()")
print(enet.predict_log_proba(X))
print("h2o4gpu scikit wrapper score()")
print(enet.score(X,y))
print("h2o4gpu scikit wrapper decision_function()")
print(enet.decision_function(X))
print("h2o4gpu scikit wrapper densify()")
print(enet.densify())
print("h2o4gpu scikit wrapper sparsify")
print(enet.sparsify())
from sklearn.linear_model.logistic import LogisticRegression
enet_sk = LogisticRegression(dual=True, max_iter=100, tol=1E-4, intercept_scaling=0.99, random_state=1234)
print("Scikit fit()")
enet_sk.fit(X, y)
print("Scikit predict()")
print(enet_sk.predict(X))
print("Scikit predict_proba()")
print(enet_sk.predict_proba(X))
print("Scikit predict_log_proba()")
print(enet_sk.predict_log_proba(X))
print("Scikit score()")
print(enet_sk.score(X,y))
print("Scikit decision_function()")
print(enet_sk.decision_function(X))
print("Scikit densify()")
print(enet_sk.densify())
print("Sciki sparsify")
print(enet_sk.sparsify())
enet_sk_coef = csr_matrix(enet_sk.coef_, dtype=np.float32).toarray()
print(enet_sk.coef_)
print(enet_sk_coef)
print(enet.coef_)
print(enet_sk.intercept_)
print("Coeffs, intercept, and n_iters should match")
assert np.allclose(enet.coef_, enet_sk_coef)
assert np.allclose(enet.intercept_, enet_sk.intercept_)
assert np.allclose(enet.n_iter_, enet_sk.n_iter_)
print("Preds should match")
assert np.allclose(enet.predict_proba(X), enet_sk.predict_proba(X))
assert np.allclose(enet.predict(X), enet_sk.predict(X))
assert np.allclose(enet.predict_log_proba(X), enet_sk.predict_log_proba(X))