[hands on data analysis] Task04 - Data Visualization
1, matplotlib Library Information visualization can help us find outliers, carry out necessary data conversion, judge which relevant model to choose, and also need data interaction. matplotlib is a third-party package for drawing high-quality charts, which has derived several data visualizationUTF-8...
Posted by torleone on Mon, 20 Sep 2021 11:42:36 +0530
Data analysis using python
Study notes 4 Chapter IV: NumPy Foundation: array and vectorization calculation preface NumPy is the most important basic package for python numerical calculation. ·ndarray, an efficient multi-dimensional array, provides convenient arithmetic operation based on array and flexible broadcasting fUTF-8...
Posted by zippers24 on Tue, 05 Oct 2021 01:53:53 +0530
[Python data analysis] pandas knowledge summary (super comprehensive)
Series Create a one-dimensional data table Initialize creation # index can be specified sr1 = pd.Series(np.arange(10), index=list(string.ascii_uppercase[:10])) print(sr1) # A 0 # B 1 # C 2 # D 3 # E 4 # F 5 # G 6 # H 7 # I 8 # J 9 # dtype: int32 # You can not specify an index. Index starts witUTF-8...
Posted by hometoast on Tue, 05 Oct 2021 05:30:29 +0530
Analysis of Taobao user behavior data
1, Project background 1. Analysis background With the rapid development of e-commerce and the popularity of mobile Internet, more and more people choose convenient and fast online shopping. Taobao, as one of the largest e-commerce trading platforms in China, has a huge traffic advantage. On TaUTF-8...
Posted by twistisking on Wed, 06 Oct 2021 04:17:29 +0530
Teddy Cup Grand Prize idea (user behavior analysis of online courses on education platform (including data visualization processing)) - Code
This data set and topic are from the 2020 Teddy cup personal skills competition, which is the real data of an online platform. The work has won the best result of the same year, the special prize and the Teddy cup. Now it is further re established and optimized on the current basis. If you havUTF-8...
Posted by Lucky_PHP_MAN on Fri, 08 Oct 2021 04:57:11 +0530
Numpy most!!! Recommended collection!!!
Numpy Introduction!!! Suggested Collection!!! (2) 1. File Operation In numpy, to handle large amounts of data, you usually use.csv or.npy files that come with numpy Save csv file import numpy as np scores = np.random.randint(0, 10, size=(20, 2)) print(scores) np.savetxt("score.csv", scores, delUTF-8...
Posted by Kestrad on Sat, 16 Oct 2021 22:00:02 +0530
How to master MYSQL quickly? Detailed explanation of all SQL topics on niuke.com [recommended collection]
Friends, if you want to enter a good company in the future, I suggest you must brush the questions. If you don't know anything at present, just stay at the level of knowing that SELECT is used for query, and want to quickly master MYSQL, then brushing questions and adding nothing in the processUTF-8...
Posted by ohenewa on Tue, 19 Oct 2021 12:52:43 +0530
Pandas data processing (python data analysis uses pandas library flexibly)
catalogue 1. Data combination 1.1 connection 1.1.1 add line 1.1.2 adding columns 1.1.3 connection operation under different indexes 1.2 merging multiple data sets 1.2.1 one to one consolidation 1.2.2 many to one consolidation 1.2.3 many to many consolidation 2. Missing data 2.1 finding and counUTF-8...
Posted by mits on Sat, 23 Oct 2021 15:33:09 +0530
Common skills of pandas: filtering, splicing, multi-level index and pivoting
In python, the most commonly used data analysis library is pandas, and the most commonly used methods in data analysis are filtering, splicing, multi-level list and pivoting. I will introduce these four aspects through four sections below. catalogue screenSplicing (connection)Multilevel listPivUTF-8...
Posted by natman3 on Sat, 30 Oct 2021 08:35:12 +0530
3 Advanced MySQL applications
1) Window function # 1 Grammar Function name([expr]) over(partition by order by rows between ) # 2 data range rows between 2 preceding and current row # From the first 2 lines to the current line rows between unbounded preceding and current row #UTF-8...
Posted by BillyT on Sat, 30 Oct 2021 16:11:35 +0530