要返回基础索引数据中的元素数,请使用Pandas 中的index.size属性。
首先,导入所需的库 -
import pandas as pd
创建索引 -
index = pd.Index([15, 25, 35, 45, 55])
显示索引 -
print("Pandas Index...\n",index)
返回索引中的元素数 -
print("\nNumber of elements in the index...\n",index.size)
以下是代码 -
import pandas as pd # 创建索引 index = pd.Index([15, 25, 35, 45, 55]) # 显示索引 print("Pandas Index...\n",index) # 返回索引中的元素数 print("\nNumber of elements in the index...\n",index.size) # 返回基础数据形状的元组 print("\nA tuple of the shape of underlying data...\n",index.shape) # 获取数据中的字节 print("\nReturn the bytes...\n",index.nbytes) # 获取数据的维度 print("\nReturn the dimensions...\n",index.ndim)输出结果
这将产生以下代码 -
Pandas Index... Int64Index([15, 25, 35, 45, 55], dtype='int64') Number of elements in the index... 5 A tuple of the shape of underlying data... (5,) Return the bytes... 40 Return the dimensions... 1