import?numpy?as?np
import?matplotlib.pyplot?as?plt
from?sklearn.metrics?import?confusion_matrix
from?sklearn.metrics?import?classification_report

#?Define?sample?labels
true_labels?=?[2?0?0?2?4?4?1?0?3?3?3]
pred_labels?=?[2?1?0?2?4?3?1?0?1?3?3]

#?Create?confusion?matrix
confusion_mat?=?confusion_matrix（true_labels?pred_labels）

#?Visualize?confusion?matrix
plt.imshow（confusion_mat?interpolation=‘nearest‘?cmap=plt.cm.gray）
plt.title（‘Confusion?matrix‘）
plt.colorbar（）
ticks?=?np.arange（5）
plt.xticks（ticks?ticks）
plt.yticks（ticks?ticks）
plt.ylabel（‘True?labels‘）
plt.xlabel（‘Predicted?labels‘）
plt.show（）

#?Classification?report
targets?=?[‘Class-0‘?‘Class-1‘?‘Class-2‘?‘Class-3‘?‘Class-4‘]
print（‘\n‘?classification_report（true_labels?pred_labels?target_names=targets））

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2017-03-27?10:14??Artificial-Intelligence-with-Python-master\
?????目錄???????????0??2017-03-27?10:14??Artificial-Intelligence-with-Python-master\Chapter?02\
?????目錄???????????0??2017-03-27?10:14??Artificial-Intelligence-with-Python-master\Chapter?02\code\
?????文件?????????810??2017-03-27?10:14??Artificial-Intelligence-with-Python-master\Chapter?02\code\confusion_matrix.py
?????文件????????4820??2017-03-27?10:14??Artificial-Intelligence-with-Python-master\Chapter?02\code\data_multivar_nb.txt
?????文件???????14445??2017-03-27?10:14??Artificial-Intelligence-with-Python-master\Chapter?02\code\data_multivar_regr.txt
?????文件????????1148??2017-03-27?10:14??Artificial-Intelligence-with-Python-master\Chapter?02\code\data_preprocessor.py
?????文件?????????622??2017-03-27?10:14??Artificial-Intelligence-with-Python-master\Chapter?02\code\data_singlevar_regr.txt
?????文件????????1184??2017-03-27?10:14??Artificial-Intelligence-with-Python-master\Chapter?02\code\house_prices.py
?????文件????????2582??2017-03-27?10:14??Artificial-Intelligence-with-Python-master\Chapter?02\code\income_classifier.py
?????文件?????3974305??2017-03-27?10:14??Artificial-Intelligence-with-Python-master\Chapter?02\code\income_data.txt
?????文件?????????813??2017-03-27?10:14??Artificial-Intelligence-with-Python-master\Chapter?02\code\label_encoder.py
?????文件?????????671??2017-03-27?10:14??Artificial-Intelligence-with-Python-master\Chapter?02\code\logistic_regression.py
?????文件????????2172??2017-03-27?10:14??Artificial-Intelligence-with-Python-master\Chapter?02\code\naive_bayes.py
?????文件????????1745??2017-03-27?10:14??Artificial-Intelligence-with-Python-master\Chapter?02\code\regressor_multivar.py
?????文件????????1798??2017-03-27?10:14??Artificial-Intelligence-with-Python-master\Chapter?02\code\regressor_singlevar.py
?????文件????????1386??2017-03-27?10:14??Artificial-Intelligence-with-Python-master\Chapter?02\code\utilities.py
?????目錄???????????0??2017-03-27?10:14??Artificial-Intelligence-with-Python-master\Chapter?03\
?????目錄???????????0??2017-03-27?10:14??Artificial-Intelligence-with-Python-master\Chapter?03\code\
?????文件????????2013??2017-03-27?10:14??Artificial-Intelligence-with-Python-master\Chapter?03\code\class_imbalance.py
?????文件????????4250??2017-03-27?10:14??Artificial-Intelligence-with-Python-master\Chapter?03\code\data_decision_trees.txt
?????文件???????17674??2017-03-27?10:14??Artificial-Intelligence-with-Python-master\Chapter?03\code\data_imbalance.txt
?????文件???????10645??2017-03-27?10:14??Artificial-Intelligence-with-Python-master\Chapter?03\code\data_random_forests.txt
?????文件????????1720??2017-03-27?10:14??Artificial-Intelligence-with-Python-master\Chapter?03\code\decision_trees.py
?????文件????????1800??2017-03-27?10:14??Artificial-Intelligence-with-Python-master\Chapter?03\code\feature_importance.py
?????文件????????1645??2017-03-27?10:14??Artificial-Intelligence-with-Python-master\Chapter?03\code\grid_search.py
?????文件????????3388??2017-03-27?10:14??Artificial-Intelligence-with-Python-master\Chapter?03\code\random_forests.py
?????文件????????1645??2017-03-27?10:14??Artificial-Intelligence-with-Python-master\Chapter?03\code\run_grid_search.py
?????文件??????526911??2017-03-27?10:14??Artificial-Intelligence-with-Python-master\Chapter?03\code\traffic_data.txt
?????文件????????1987??2017-03-27?10:14??Artificial-Intelligence-with-Python-master\Chapter?03\code\traffic_prediction.py
?????文件????????1441??2017-03-27?10:14??Artificial-Intelligence-with-Python-master\Chapter?03\code\utilities.py
............此處省略261個文件信息