[R] merging data sets to match data to date

[stephen sefick]

zoo and merge.zoo- read the help files.  Use chron to generate a list
of dates that correspond to the one that you want, and then merge
away.
This should get you started

Stephen Sefick

On Wed, Aug 13, 2008 at 9:08 AM, Erik Iverson <iverson at biostat.wisc.edu> wrote:
> rcoder wrote:
>>
>> Hi everyone,
>>
>> I want to extract data from a data set according to dates specified in a
>> vector. I have created a blank matrix with row names (dates) that I want
>> to
>> extract from the full data set. I have then performed a merge to try to
>> o/p
>> rows corresponding to common dates to a results matrix, but the operation
>> did not fill the results matrix. Coulc anyone offer any advice to assist
>> with this operation?
>
> Yes, follow the posting guide and provide commented, minimal,
> self-contained, reproducible code of your problem.
>
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> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>



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