方法與套件

給 MATLAB 使用者的 Python

Justin Kiggins

Product Manager

方法是附掛在變數上的函式

依變數型別而定
以句點呼叫

yelling = "WHY ARE YOU YELLING?"
whispering = yelling.lower()
print(whispering)

why are you yelling?

.format() 方法

n_avocados = 1765
message = "I have {} avocados!".format(n_avocados)

print(message)

I have 1765 avocados!

Python 套件

NumPy 標誌

matplotlib 標誌

pandas 標誌

import math

math.pi

3.141592653589793

math.log(0.9)

-0.10536051565782628

匯入套件的一部分：

from math import log
log(0.9)

-0.10536051565782628

套件別名（aliasing）

import datetime as dt

birth_date = dt.datetime(1961,8,4)

# Import NumPy package with common alias
import numpy as np
x = np.ndarray([1, 2, 3])

# Import pandas package with common alias
import pandas as pd
df = pd.DataFrame()

# Import Matplotlib pyplot module with common alias
import matplotlib.pyplot as plt
plt.show()

# Import Seaborn package with common alias
import seaborn as sns
sns.set_theme()

來看看一些實用的方法與套件

給 MATLAB 使用者的 Python