需要帮助根据列间隔动态地将一个数据帧拆分为多个较小的数据帧并保存它们.例:
x = data.frame(num = 1:26, let = letters, LET = LETTERS)
上述数据帧x需要基于num中的值分成较小的数据帧,间隔为5.结果将是6个数据帧
> 1. 0 – 5
> 2. 6 – 10
> 3. 11 – 15
> 4. 16 -20
> 5. 21 -25
> 6. 26 – 30
谢谢你,维克拉姆
说我有下表:
+------------+-------+
| Date | Count |
+------------+-------+
| 11/25/2017 | 1 |
| 11/21/2017 | 1 |
| 11/20/2017 | 1 |
| 11/18/2017 | 1 |
| 11/10/2017 | 1 |
| 11/2/2017 | 0 |
| 10/27/2017 | 0 |
| 10/26/2017 | 1 |
| 10/21/2017 | 1 |
| 10/21/2017 | 1 |
| 10/17/2017 | 1 |
| 10/9/2017 | 0 |
| 10/2/2017 | 0 |
| 9/22/2017 | 0 |
| 9/14/2017 …请帮我查询以确定文本字符串SQL Server中连续出现的次数.
Sample Date | Query Output
---------------------------
11001 | 2
10000 | 1
11111 | 5
10111 | 3
00000 | 0
10010 | 1
10001 | 1
00100 | 1
11001 | 2
10100 | 1
01110 | 3
00011 | 2
00000 | 0
10010 | 1
01111 | 4
00110 | 2
10011 | 2
10010 | 1
01101 | 2
01010 | 1
10101 | 1