st: Merge??

["Raphael Fraser" <raphael.fraser@gmail.com>]

I would like to merge data1 and data2:

data1,
time d1
82    1
90    0

data2,
time d2
82    1
82    1
89    0

The result should look like this
time d1 d2
82    1   1
82     .   1
89     .   0
90    0    .

Can any one help?

Raphael
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