使用NumPy函数创建Pandas系列
Pandas系列是一个一维标记的数组,能够容纳任何类型的数据(整数、字符串、浮点、python对象等)。
让我们看看如何使用不同的numpy函数创建一个Pandas系列。
代码#1:使用numpy.linspace()
# import pandas and numpy
import pandas as pd
import numpy as np
# series with numpy linspace()
ser1 = pd.Series(np.linspace(3, 33, 3))
print(ser1)
# series with numpy linspace()
ser2 = pd.Series(np.linspace(1, 100, 10))
print("\n", ser2)
输出:
代码#2:使用np.random.normal()和random.rand()方法。
# import pandas and numpy
import pandas as pd
import numpy as np
# series with numpy random.normal
ser3 = pd.Series(np.random.normal())
print(ser3)
# series with numpy random.normal
ser4 = pd.Series(np.random.normal(0.0, 1.0, 5))
print("\n", ser4)
# series with numpy random.rand
ser5 = pd.Series(np.random.rand(10))
print("\n", ser5)
输出:
代码#3:使用numpy.repeat()。
# import pandas and numpy
import pandas as pd
import numpy as np
# series with numpy random.repeat
ser = pd.Series(np.repeat(0.08, 7))
print("\n", ser)
输出: