小编Xan*_*n97的帖子

基本上，我有一个简单的两列数据帧，一个以 10° 为间隔的圆度数，另一个在不同的数据帧中具有这些度数的频率。

In the degrees column there is a row for 0° and a row for 360°, and since those mean the same thing (in the context of wind direction) I'd like to combine the two rows into a single 0° row. E.g. from:

degree   freq 
0        1446
10       7652
20       2655
...
360      5417

To this

degree   freq 
0        6863
10       7652
20       2655
...

I'm sure this a very simple thing to do but I've spent 3 …

在 R 中，我有一个如下所示的数据框：

        2021    2020    2019    2018    2017    2015    2010    2006    2002    1998    1994    1990
1       6       6       6       6       4       6       6       6       6       6       6       6
2       6       6       6       6       6       6       6       6       6       3       4       4
3       7       6       6       6       4       6       6       6       6       6       6       6
4       6       6       6       6       6       6       6       6       6       6       6       6
5       4       4       7       6       4       6       6       6       6       6       4       6 …