lab3
unknown
python
3 years ago
1.6 kB
4
Indexable
# coding: utf-8 # In[40]: import numpy as np import pandas as pd # In[41]: lables=['a','b','c'] my_list=[10,20,30] arr=np.array([10,20,30]) d={'a':10,'b':20,'c':30} # In[42]: pd.Series(data=my_list) # In[43]: pd.Series(d) # In[44]: pd.Series([sum,print,len]) # In[45]: ser1=pd.Series([1,2,3,4], index=['USA','Germany','USSR','Japan']) # In[48]: ser2=pd.Series([1,2,5,4], index=['USA','Germany','Italy','Japan']) # In[49]: ser1+ser2 # In[52]: from numpy.random import randn np.random.seed(101) # In[53]: df=pd.DataFrame(randn(5,4),index='A B C D E'.split(),columns = 'W X Y Z'.split()) # In[54]: df # In[57]: df[['W','Z']] # In[58]: df.W # In[59]: type(df['W']) # In[60]: df['new']=df['W'] + df['Y'] # In[61]: df # In[63]: df.drop('new',axis=1) # In[64]: df # In[65]: df.drop('new',axis=1,inplace=True) # In[66]: df # In[67]: df.drop('E',axis=0,inplace=True) # In[68]: df # In[69]: df.loc['A'] # In[70]: df.loc['B','Y'] # In[71]: df>0 # In[72]: df # In[75]: df[df>0] # In[79]: df[df['W']>0]['Y'] # In[81]: df[df['W']>0] # In[82]: df[df['W']>0][['Y','X']] # In[85]: df[(df['W']>0)& (df['Y']>0)] # In[86]: df.reset_index() # In[109]: newind='CA NY PL CA'.split() df['States']=newind # In[110]: df # In[112]: df.set_index('States',inplace=True) # In[113]: df # In[118]: import matplotlib.pyplot as plt from matplotlib import figure df = pd.read_csv('C://Users//Admin//CSE_Avirup_Python/example.csv') print(df)
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