[R] Help with missing values in the dataset

[Nikhil Kaza]

?merge

use all=L

On 10 Dec 2009, at 6:06AM, Venkatesh.P wrote:

>
> Dear all,
>
> I am facing problem with inserting the scheduled day of Observation
> in the dataset. In the dataset I have only  relative time (table 1)  
> and not
> scheduled day of observation (day 1, 4, 8, 15, 22, 29, 36, 43).
> I would appreciate if any one could suggest me how to proceed.
>
> Eg:
>
> Table 1 The real dataset looks like this with Time, DV ... etc
>
> RTime   DV
> 1        101
> 4        95
> 8        86
> 15      96
> 25      80
> 29      69
>
> I need to make the dataset (insert SDAY column and 2 rows for day 36  
> and 43 with dots in DV column) in following format
>     SDAY        RTime   DV
>      1               1        101
>      4               4        95
>      8               8        86
>     15              15       96
>     21              25      80
>     29              29      69
>     36              36      .                       Missing  
> Observation
>    43               43      .                        Missing  
> Observation
>
> Thank you in advance,
> Venkatesh
>
> Best Regards  Venkatesh P
>
>
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