Dear Michael,

I don't think this is mentioned in the zoo FAQ. May I ask where you read
this? Some references ?

Thank you for your help,
Ashim

On Tue, Sep 27, 2011 at 4:06 PM, R. Michael Weylandt <
michael.weylandt@gmail.com> wrote:

> Yes, once made into a character zoo, the core data is marked to be of mode
> "character" and most attempts to modify involve implicit coercion to that
> mode.
>
> The following however works:
>
> library(zoo)
>
> z <- zoo(1:4, order.by=1:4)
> str(z)
>
> z.Str <- z
> coredata(z.Str) <- as.character(coredata(z))
> str(z.Str)
>
> z.Num <- z.Str
> mode(z.Num) <- "numeric"
> str(z.Num)
>
> However, I prefer to use this sort of line of code:
>
> z.Num <- zoo(as.double(z.Str), index(z.Str))
>
> finding it a little more transparent.
>
> Hope this helps,
> Michael Weylandt
>
> On Tue, Sep 27, 2011 at 5:56 AM, Ashim Kapoor <ashimkapoor@gmail.com>wrote:
>
>> Dear R-helpers,
>>
>> It seems to me that a character zoo cannot be coerced to a numeric zoo.
>> Below is a minimal example. Can someone tell me what I have done wrong?
>>
>> > z<-zoo(1:4,order.by=1:4)
>> > coredata(z)<-as.character(coredata(z))
>> > str(z)
>> ‘zoo’ series from 1 to 4
>>  Data: chr [1:4] "1" "2" "3" "4"
>>  Index:  int [1:4] 1 2 3 4
>> > coredata(z)<-as.numeric(coredata(z))
>> > str(z)
>> ‘zoo’ series from 1 to 4
>>  Data: chr [1:4] "1" "2" "3" "4"
>>  Index:  int [1:4] 1 2 3 4
>>
>>
>> Many thanks,
>> Ashim
>>
>>        [[alternative HTML version deleted]]
>>
>>
>> ______________________________________________
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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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