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introduce First use Anaconda to create a virtual environment named pt37, and then want to open jupyter in this virtual environment. Follow other online tutorials and use conda install nb_conda and python -m ipykernel install --name {your virtual environment name, such as QQ} -- display name {the name you want to display} did not find the crea ...

1, Foreword                  When carrying out fundamental analysis on a listed company, we can usually analyze and interpret its financial data and evaluate its internal value through various channels such as research on listed companies. Our commonly used financial evaluation indicators may includ ...

demand Source data acquisition – password: 6qpt Import the file and view the original dataCombine population data with state abbreviation dataDelete the duplicate abstraction column in the merged dataView columns with missing dataFind out which states / regions make the value of state NaN and perform the de duplication ope ...

1, Using excel to do linear regression 1. Startup steps Find data analysis in the data column of excel, and then start linear regression. If there is no "data analysis" tab, you can select "add in" in the "file" tab and select "go" as follows: Check the required tool 2. Data analysis After impor ...

Single layer graph slide verification code of selenium and PIL How to crack the slide verification code preparation in advance Code operation How to crack the slide verification code There are various mechanisms of anti climbing on the market, among which the sliding verification code is divided into two-layer graph ...

Reference: author's Jupyter NotebookChapter 2 – End-to-end Machine Learning project Generate picture and savefrom __future__ import division, print_function, unicode_literals import numpy as np import matplotlib as mpl import matplotlib.pyplot as plt import os np.random.seed(42) mpl.rc('axes', labelsize=14) mpl.rc('xtick', labelsize=12) mpl.r ...

Naive Bayes The joint probability P(A,B) = P(B|A)*P(A) = P(A|B)*P(B) combines the two equations on the right to get the following formula: P (a| b) indicates the probability of a in the case of B. P(A|B) = [P(B|A)*P(A)] / P(B) Let's have A visual understanding of this formula. As shown in the figure ...

Article Directory 1 Data analysis 1.1 First look at what the data looks like 1.2 Continuous and categorical variables 1.3 Number of attributes in categorical variables 1.4 Compensation value 1.5 Continuous Variable Characteristics 1.6 Correlation between features 2 Xgboost 2.1 Data Preprocessing 2.2 ...

Article directory 1. Preface 2. Introduction to Matplotlib 3. installation 4. Drawing basis 4.1 plot() function 4.1.1 Chinese display 4.1.2 text display 5. Drawing of common charts 5.1 histogram 5.1.1 simple example 5.1.2 function definition 5.1.3 histogram of normal distribution 5.2 pie chart ...

When building a house, the choice of wood is a problem. A carpenter's goal is essentially to carry a good cutting tool. When he has time, he sharpens his equipment. {-:} - Miyamoto Musashi (wulunshu) This article is excerpted from Chapter 2 of Python big data analysis (version 2) For new Python users, ...