I didn't notice the second question and was only
answering your first question:
> library(zoo)
> x <- zoo(c(361.667, 389.875, NA, NA, 397.822, 395.667), as.Date("2008-12-11")
> + 0:5)
> x[as.Date("2008-12-14")]
2008-12-14
NA
For the second question use window (window also works for the first question
as well):
> window(x, as.Date("2008-12-14")) <- 1
> x
2008-12-11 2008-12-12 2008-12-13 2008-12-14 2008-12-15 2008-12-16
361.667 389.875 NA 1.000 397.822 395.667
See ?window.zoo
On Thu, Dec 18, 2008 at 8:31 AM, <tolga.i.uzu...@jpmorgan.com> wrote:
>
> Thanks Gabor.
>
> Just tried that... it didn't work for some reason, even though it also did
> not complain about an error this time.
>
>
>> x[as.Date("2008-12-14")]
> 2008-12-14
> NA
>> x[as.Date("2008-12-14")]<-1
>> x[as.Date("2008-12-14")]
> 2008-12-14
> NA
>>
>
> Regards,
> Tolga
>
>
>
> Tolga Uzuner
> Cross-Markets
> Chief Investments Office
> JP Morgan
> 6th Floor, 100 Wood Street
> London EC2V 7RF
> United Kingdom
> Asst. Lee Hesketh
> Tel: +44-20-77773303
> Fax: +44-20-77422840
>
>
>
> "Gabor Grothendieck" <ggrothendi...@gmail.com>
>
> 18/12/2008 04:07
>
> To
> tolga.i.uzu...@jpmorgan.com
> cc
> r-help@r-project.org
> Subject
> Re: [R] replacing elements of a zoo object
>
>
>
>
> Remove the comma in the line with the error.
>
> On Wed, Dec 17, 2008 at 11:24 AM, <tolga.i.uzu...@jpmorgan.com> wrote:
>> Dear R Users,
>>
>> I am trying to do something quite simple: replace the elements of a zoo
>> object. For some reason, the following code does not seem to work. How can
>> I replace the value for the 14th of Dec of 2008 in the zoo object x below
>> with 1 (it is currently NA).
>>
>>> x
>> 2008-12-11 2008-12-12 2008-12-13 2008-12-14 2008-12-15 2008-12-16
>> 361.667 389.875 NA NA 397.822 395.667
>>> class(x)
>> [1] "zoo"
>>> class(index(x))
>> [1] "Date"
>>> x[as.Date("2008-12-14"),]
>> 2008-12-14
>> NA
>>> x[as.Date("2008-12-14"),]<-1
>> Error in x[as.Date("2008-12-14"), ] <- 1 :
>> incorrect number of subscripts on matrix
>>>
>>
>>
>> Thanks in advance,
>> Tolga
>>
>> Generally, this communication is for informational purposes only
>> and it is not intended as an offer or solicitation for the purchase
>> or sale of any financial instrument or as an official confirmation
>> of any transaction. In the event you are receiving the offering
>> materials attached below related to your interest in hedge funds or
>> private equity, this communication may be intended as an offer or
>> solicitation for the purchase or sale of such fund(s). All market
>> prices, data and other information are not warranted as to
>> completeness or accuracy and are subject to change without notice.
>> Any comments or statements made herein do not necessarily reflect
>> those of JPMorgan Chase & Co., its subsidiaries and affiliates.
>>
>> This transmission may contain information that is privileged,
>> confidential, legally privileged, and/or exempt from disclosure
>> under applicable law. If you are not the intended recipient, you
>> are hereby notified that any disclosure, copying, distribution, or
>> use of the information contained herein (including any reliance
>> thereon) is STRICTLY PROHIBITED. Although this transmission and any
>> attachments are believed to be free of any virus or other defect
>> that might affect any computer system into which it is received and
>> opened, it is the responsibility of the recipient to ensure that it
>> is virus free and no responsibility is accepted by JPMorgan Chase &
>> Co., its subsidiaries and affiliates, as applicable, for any loss
>> or damage arising in any way from its use. If you received this
>> transmission in error, please immediately contact the sender and
>> destroy the material in its entirety, whether in electronic or hard
>> copy format. Thank you.
>> Please refer to http://www.jpmorgan.com/pages/disclosures for
>> disclosures relating to UK legal entities.
>> [[alternative HTML version deleted]]
>>
>> ______________________________________________
>> R-help@r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide
>> http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>>
>
> ________________________________
>
> Generally, this communication is for informational purposes only and it is
> not intended as an offer or solicitation for the purchase or sale of any
> financial instrument or as an official confirmation of any transaction. In
> the event you are receiving the offering materials attached below related to
> your interest in hedge funds or private equity, this communication may be
> intended as an offer or solicitation for the purchase or sale of such
> fund(s). All market prices, data and other information are not warranted as
> to completeness or accuracy and are subject to change without notice. Any
> comments or statements made herein do not necessarily reflect those of
> JPMorgan Chase & Co., its subsidiaries and affiliates. This transmission may
> contain information that is privileged, confidential, legally privileged,
> and/or exempt from disclosure under applicable law. If you are not the
> intended recipient, you are hereby notified that any disclosure, copying,
> distribution, or use of the information contained herein (including any
> reliance thereon) is STRICTLY PROHIBITED. Although this transmission and any
> attachments are believed to be free of any virus or other defect that might
> affect any computer system into which it is received and opened, it is the
> responsibility of the recipient to ensure that it is virus free and no
> responsibility is accepted by JPMorgan Chase & Co., its subsidiaries and
> affiliates, as applicable, for any loss or damage arising in any way from
> its use. If you received this transmission in error, please immediately
> contact the sender and destroy the material in its entirety, whether in
> electronic or hard copy format. Thank you. Please refer to
> http://www.jpmorgan.com/pages/disclosures for disclosures relating to UK
> legal entities.
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
