Python Pandas - 返回底層索引資料中的元素數量
若要返回底層索引資料中的元素數量,請使用 Pandas 中的 index.size 屬性。
首先,匯入所需的庫 −
import pandas as pd
建立索引 −
index = pd.Index([15, 25, 35, 45, 55])
顯示索引 −
print("Pandas Index...\n",index)返回索引中的元素數量 −
print("\nNumber of elements in the index...\n",index.size)
示例
以下為程式碼 −
import pandas as pd
# Creating the index
index = pd.Index([15, 25, 35, 45, 55])
# Display the index
print("Pandas Index...\n",index)
# Return the number of elements in the Index
print("\nNumber of elements in the index...\n",index.size)
# Return a tuple of the shape of the underlying data
print("\nA tuple of the shape of underlying data...\n",index.shape)
# get the bytes in the data
print("\nReturn the bytes...\n",index.nbytes)
# get the dimensions of the data
print("\nReturn the dimensions...\n",index.ndim)輸出
這會生成以下程式碼 −
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
廣告
資料結構
網路
RDBMS
作業系統
Java
iOS
HTML
CSS
Android
Python
C 程式設計
C++
C#
MongoDB
MySQL
Javascript
PHP