Pandas Tutorial 1

import numpy as np

import pandas as pd

la = np.random.rand(3)

dd = pd.Series(la)

print(dd.head(10))

# 0 0.145517

# 1 0.718904

# 2 0.448772

# dtype: float64

ll = range(3)

dd = pd.Series(ll)

print(dd.head(10))

# 0 0

# 1 1

# 2 2

# dtype: int64

dd = pd.Series(ll, index=['First', 'Second', 'Third'])

print(dd.head(10))

# First 0

# Second 1

# Third 2

# dtype: int64

print(dd["First"]) # 0

print(dd[0]) # 0

nd = np.random.rand(3,2)

df = pd.DataFrame(nd)

df.columns = ["First", "Second"]

print(df.head(10))

# First Second

# 0 0.567850 0.275874

# 1 0.839382 0.792727

# 2 0.445246 0.537417

print(df.loc[0])

# First 0.567850

# Second 0.275874

# Name: 0, dtype: float64

print(df.iloc[0,1]) #0.275874

print(df.loc[0, "Second"]) #0.275874