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Why does X[Y] join of data.tables not allow a full outer join, or a left join?
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## t b a
## 1: 1 NA 1
## 2: 2 NA 4
## 3: 3 9 9
## 4: 4 16 16
## 5: 5 25 NA
## 6: 6 36 NA
# The following will give the same with the column order X,Y
X[Y[J(unique_keys)]]
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answered Apr 16 '15 at 14:01
DaveVDaveV
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EditText, inputType values (xml)
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edited May 22 '14 at 19:51
Dheeraj Bhaskar
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– Mahttias Schrebiér
Oct 25 '16 at 8:00
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answered Apr 7 '11 at 4:59
John FlatnessJohn Flatness
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Marco Lackovic
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