吴裕雄--天生自然 python数据分析：健康指标聚集分析（健康分析）

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# This Python 3 environment comes with many helpful analytics libraries installed
# It is defined by the kaggle/python docker image: https://github.com/kaggle/docker-python
# For example, here's several helpful packages to load in 

import numpy as np # linear algebra
import pandas as pd # data processing, CSV file I/O (e.g. pd.read_csv)

# Input data files are available in the "../input/" directory.
# For example, running this (by clicking run or pressing Shift+Enter) will list the files in the input directory

df=pd.read_csv('F:\\kaggleDataSet\\Key_indicator_districtwise\\Key_indicator_districtwise.csv')
df.head()

x=df['AA_Sample_Units_Total']
y=df['AA_Sample_Units_Rural']
z=df['AA_Population_Urban']
import matplotlib.pyplot as plt
import seaborn as sns
plt.title('State_District_Name vs AA_Sample_Units_Total ')
plt.xlabel('State_District_Name')
plt.ylabel('AA_Sample_Units_Total')
plt.scatter(x,y)

plt.hist(x)
plt.title('AA_Sample_Units_Total vs Frequency')
plt.xlabel('AA_Sample_Units_Total')
plt.ylabel('Frequency')

plt.hist(y)
plt.title('AA_Sample_Units_Rural vs frequency')
plt.xlabel('AA_Sample_Units_Rural')
plt.ylabel('Frequency')

plt.hist(z)
plt.title('AA_Population_Urban vs Frequency')
plt.xlabel('AA_Population_Urban')
plt.ylabel('Frequency')

q=df['AA_Ever_Married_Women_Aged_15_49_Years_Total']
q
w=q.sort_values()
w

plt.boxplot(w)

plt.boxplot(y)

import matplotlib.pyplot as plt 
import numpy as np 
from sklearn import datasets, linear_model, metrics 
  
# load the boston dataset 
boston = datasets.load_boston(return_X_y=False) 
  
# defining feature matrix(X) and response vector(y) 
X = boston.data 
y = boston.target 
  
# splitting X and y into training and testing sets 
from sklearn.model_selection import train_test_split 
X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=0.4, 
                                                    random_state=1) 
  
# create linear regression object 
reg = linear_model.LinearRegression() 
  
# train the model using the training sets 
reg.fit(X_train, y_train) 
  
# regression coefficients 
print('Coefficients: \n', reg.coef_) 
  
# variance score: 1 means perfect prediction 
print('Variance score: {}'.format(reg.score(X_test, y_test))) 
  
# plot for residual error 
  
## setting plot style 
plt.style.use('fivethirtyeight') 
  
## plotting residual errors in training data 
plt.scatter(reg.predict(X_train), reg.predict(X_train) - y_train, 
            color = "green", s = 10, label = 'Train data') 
  
## plotting residual errors in test data 
plt.scatter(reg.predict(X_test), reg.predict(X_test) - y_test, 
            color = "blue", s = 10, label = 'Test data') 
  
## plotting line for zero residual error 
plt.hlines(y = 0, xmin = 0, xmax = 50, linewidth = 2) 
  
## plotting legend 
plt.legend(loc = 'upper right') 
  
## plot title 
plt.title("Residual errors") 
  
## function to show plot 
plt.show() 

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