Programming VIP

Introduce Numpy is an open source numerical calculation extension package for Python. Numpy supports common array and matrix operations. For the same numerical calculation task, using numpy is much simpler and more efficient than using Python directly.Numpy uses the ndarray object to handle multidimensional arrays, which is a fast and fle ...

Author: Huan HaoSource: Hang Seng LIGHT cloud communityPandas is a Python software library, which provides a large number of functions and methods that enable us to process data quickly and easily. This paper will mainly introduce the practical data processing operation of pandas.Series of articles:[Pandas learning notes 01] powerful tool set f ...

Pandas is an open source, BSD licensed library that must be mastered when starting Python to do data analysis. It provides high-performance, easy-to-use data structures and data analysis tools. The main data structures are Series (one-dimensional data) and DataFrame (two-dimensional data), which are sufficient to deal with most typical use ...

1. Case conversion and filling of English letters s = pd.Series(['lower', 'CAPITALS', 'this is a sentence', 'SwApCaSe']) Uppercase to lowercase: s.str.lower()Lowercase to uppercase: s.str.upper()Change to news title form: s.str.title()The first letter is uppercase, and the rest is lowercase: s.str.capitalize()Convert the original upperca ...

# Download skimage pip install scikit-image -i http://pypi.douban.com/simple/ --trusted-host pypi.douban.com 1, Installation of ipython #Install ipython pip install ipython # Enter the ipython command line ipython 2, Installation and configuration of Jupiter notebook Jupiter notebook is a note taking tool for writing python code and s ...

Point, knock on the blackboard First of all, this paper follows the traditional teaching, point to point! Only some functions or processing methods that are frequently used by individuals are introduced.The examples in this article are only used for demonstration. Generally, the examples do not modify the original data. If the code will modif ...

1. Outlier definition In statistics, outliers are data points that do not belong to a specific population, and are abnormal observations far away from other values. Outliers are observations different from other well structured data. For example, you can clearly see the outliers in this list: [20,24,22,19,29,184300,30,18] It is easy to i ...