R Full Join Result

full-join-example.txt

         week     plan signups
1  2017-01-26   Bronze      10
2  2017-01-26     Gold      55
3  2017-01-26 Standard     108
4  2017-02-05   Bronze       6
5  2017-02-05     Iron       1
6  2017-02-05     Gold      37
7  2017-02-05 Standard     142
8  2017-02-12   Bronze      17
9  2017-02-12     Iron       2
10 2017-02-12     Gold      42
11 2017-02-12 Standard     119
12 2017-02-19   Bronze      11
13 2017-02-19     Gold      26
14 2017-02-19   Silver       4
15 2017-02-19 Platinum       1
16 2017-02-19 Standard      70
17 2017-02-26   Bronze      13
18 2017-02-26   Silver       5
19 2017-02-26 Standard      52
20 2017-02-26     Gold      NA
21 2017-01-26     Iron      NA
22 2017-02-19     Iron      NA
23 2017-02-26     Iron      NA
24 2017-01-26   Silver      NA
25 2017-02-05   Silver      NA
26 2017-02-12   Silver      NA
27 2017-01-26 Platinum      NA
28 2017-02-05 Platinum      NA
29 2017-02-12 Platinum      NA
30 2017-02-26 Platinum      NA