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49 lines
1.6 KiB
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49 lines
1.6 KiB
HTML
<pre>
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DataFrame <code>students</code>
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+-------------+--------+
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| Column Name | Type |
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+-------------+--------+
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| id | int |
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| first | object |
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| last | object |
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| age | int |
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+-------------+--------+
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</pre>
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<p>Write a solution to rename the columns as follows:</p>
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<ul>
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<li><code>id</code> to <code>student_id</code></li>
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<li><code>first</code> to <code>first_name</code></li>
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<li><code>last</code> to <code>last_name</code></li>
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<li><code>age</code> to <code>age_in_years</code></li>
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</ul>
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<p>The result format is in the following example.</p>
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<p> </p>
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<pre>
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<strong class="example">Example 1:</strong>
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<strong>Input:
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</strong>+----+---------+----------+-----+
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| id | first | last | age |
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+----+---------+----------+-----+
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| 1 | Mason | King | 6 |
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| 2 | Ava | Wright | 7 |
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| 3 | Taylor | Hall | 16 |
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| 4 | Georgia | Thompson | 18 |
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| 5 | Thomas | Moore | 10 |
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+----+---------+----------+-----+
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<strong>Output:</strong>
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+------------+------------+-----------+--------------+
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| student_id | first_name | last_name | age_in_years |
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+------------+------------+-----------+--------------+
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| 1 | Mason | King | 6 |
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| 2 | Ava | Wright | 7 |
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| 3 | Taylor | Hall | 16 |
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| 4 | Georgia | Thompson | 18 |
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| 5 | Thomas | Moore | 10 |
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+------------+------------+-----------+--------------+
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<strong>Explanation:</strong>
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The column names are changed accordingly.</pre>
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