Hi
I have to time series with a different time base.
The first has only sporadic datapoints:
2011-02-01 15.29130
2011-02-08 17.60278
2011-02-15 17.99737
2011-02-22 25.43690
The other has a daily datapoint:
2011-02-01 342.34
2011-02-02 68.45
2011-02-03 130.47
2011-02-04 129.86
2011-02-05 81.98
2011-02-06 77.30
2011-02-07 81.38
2011-02-08 139.95
2011-02-09 124.40
...etc.
In Excel, it is fairly easy to get these two time series in one and the
same scatter plot, with two Y-axes, but how would you do this with R?
Also, I would like to obtain a data frame that contains both variables:
2011-02-01 342.34 15.29130
2011-02-02 68.45 NA
2011-02-03 130.47 NA
2011-02-04 129.86 NA
2011-02-05 81.98 NA
2011-02-06 77.30 NA
2011-02-07 81.38 NA
2011-02-08 139.95 17.60278
2011-02-09 124.40 NA
etc.
I can imagine that the data frame can be obtained using (nested) loops, but
that does not seem very efficient with a large dataset.
Any ideas?
Thanks a lot.
Matthijs Daelman
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