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Reshape Data: Pivot 資料表的樞紐轉換_Intro to Pandas

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題目敘述

題目會給定一個pandas DataFrame作為輸入，要求我們以原有的資料表為基礎，將資料表做樞紐轉換，垂直方向是月份，水平方向是不同的城市，而表格內容是該城市在某個月份的溫度。

題目的原文敘述

測試範例

Example 1:
Input:
+--------------+----------+-------------+
| city         | month    | temperature |
+--------------+----------+-------------+
| Jacksonville | January  | 13          |
| Jacksonville | February | 23          |
| Jacksonville | March    | 38          |
| Jacksonville | April    | 5           |
| Jacksonville | May      | 34          |
| ElPaso       | January  | 20          |
| ElPaso       | February | 6           |
| ElPaso       | March    | 26          |
| ElPaso       | April    | 2           |
| ElPaso       | May      | 43          |
+--------------+----------+-------------+
Output:
+----------+--------+--------------+
| month    | ElPaso | Jacksonville |
+----------+--------+--------------+
| April    | 2      | 5            |
| February | 6      | 23           |
| January  | 20     | 13           |
| March    | 26     | 38           |
| May      | 43     | 34           |
+----------+--------+--------------+


Explanation:
The table is pivoted, each column represents a city, and each row represents a specific month.
垂直方向是月份，水平方向是不同的城市，而表格內容是該城市在某個月份的溫度。

演算法