NumPy是Python专用于矩阵计算的包,底层函数主要用C语言编写。NumPy还是众多数据处理包的基石,比如 pandas 和 Sciki-Learn。 可见,想学好Python数据分析和机器学习,必须掌握NumPy。 我们先比较下NumPy和Python传统的数据运算,看两者的效率差别。 import numpy as np import time ## 列表运算 start = time.time() #...
Comprehensive Python Cheatsheet Download text file, Buy PDF, Fork me on GitHub or Check out FAQ. Contents 1. Collections: List, Dictionary, Set, Tuple, Range, Enumerate, Iterator, Generator. 2. Types: Type, String, Regular_Exp, Format, Numbers, Combinatorics, Datetime. 3. Syntax: Args, ...
5. Data:JSON,Pickle,CSV,SQLite,Bytes,Struct,Array,MemoryView,Deque. 6. Advanced:Threading,Operator,Introspection,...
Comprehensive Python Cheatsheet Download text file, Buy PDF, Fork me on GitHub or Check out FAQ. Contents 1. Collections: List, Dictionary, Set, Tuple, Range, Enumerate, Iterator, Generator. 2. Types: Type, String, Regular_Exp, Format, Numbers, Combinatorics, Datetime. 3. Syntax: Args, ...
https://s3.amazonaws.com/assets.datacamp.com/blog_assets/Python_Pandas_Cheat_Sheet_2.pdf 3. Matplotlib Matplotlib是Python中常用的可视化工具之一,便于创建海量类型2D图表和一些基本的3D图表。 这里附上一张matplotlib的cheatsheet: https://s3.amazonaws.com/assets.datacamp.com/blog_assets/Python_Matplotlib_...
Free Bonus:Click here to get our itertools cheat sheetthat summarizes the techniques demonstrated in this tutorial.
http://www.wzchen.com/s/probability_cheatsheet.pdf 线性代数(Linear Algebra) 来源: https://minireference.com/static/tutorials/linear_algebra_in_4_pages.pdf 统计学(Statistics) 来源: http://web.mit.edu/~csvoss/Public/usabo/stats_handout.pdf ...
链接: https://www.analyticsvidhya.com/blog/2015/09/full-cheatsheet-machine-learning-algorithms/ Python基础 链接: http://datasciencefree.com/python.pdf 链接: https://www.datacamp.com/community/tutorials/python-data-science-cheat-sheet-basics#gs.0x1rxEA ...
https : //www.analyticsvidhya.com/blog/2015/09/full-cheatsheet-machine-learning-algorithms/ Python基础知识 来源: http : //datasciencefree.com/python.pdf 来源: https : //www.datacamp.com/community/tutorials/python-data-science-cheat-sheet-basics#gs.0x1rxEA ...
理解梯度(betterexplained.com)https://betterexplained.com/articles/vector-calculus-understanding-the-gradient/微分计算(Stanford CS224n)http://web.stanford.edu/class/cs224n/lecture_notes/cs224n-2017-review-differential-calculus.pdf计算方法概论(readthedocs.io)http://ml-cheatsheet.readthedocs.io/en/...