was trying to match different matrices of different lengths with in
the first collumn date and time info (yearmonthdayhourminute). the
routine needs to return NA´s where data of either of the matrices is
non existent.
have been trying the following:
x - c(200112030003, 200112030004,
see ?merge
merge(xx,aa,by.x='x',by.y='a')
x y b
1 2.00112e+11 1.0 1.2
2 2.00112e+11 1.1 1.9
making the two matricies time series does not mean that R knows that the
first column is a datetime.
and depending on your desired result, that may not be important.
hope that helps,
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