[R] Creating a vector with repeating dates

2013-04-17 Thread Katherine Gobin
Dear R forum

I have a data.frame

df = data.frame(dates = c(4/15/2013, 4/14/2013, 4/13/2013, 4/12/2013), 
values = c(47, 38, 56, 92))

I need to to create a vector by repeating the dates as 

Current_date, 4/15/2013, 4/14/2013, 4/13/2013, 4/12/2013,  Current_date, 
4/15/2013, 4/14/2013, 4/13/2013, 4/12/2013, Current_date, 4/15/2013, 4/14/2013, 
4/13/2013, 4/12/2013

i.e. I need to create a new vector as given below which I need to use for some 
other purpose.

Current_date
4/15/2013
4/14/2013
4/13/2013
4/12/2013
Current_date
4/15/2013
4/14/2013
4/13/2013
4/12/2013
Current_date
4/15/2013
4/14/2013
4/13/2013
4/12/2013

Is it possible to construct such a
 column?

Regards

Katherine



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Re: [R] Creating a vector with repeating dates

2013-04-17 Thread andrija djurovic
?rep


On Wed, Apr 17, 2013 at 11:11 AM, Katherine Gobin katherine_go...@yahoo.com
 wrote:

 Dear R forum

 I have a data.frame

 df = data.frame(dates = c(4/15/2013, 4/14/2013, 4/13/2013,
 4/12/2013), values = c(47, 38, 56, 92))

 I need to to create a vector by repeating the dates as

 Current_date, 4/15/2013, 4/14/2013, 4/13/2013, 4/12/2013,
 Current_date, 4/15/2013, 4/14/2013, 4/13/2013, 4/12/2013, Current_date,
 4/15/2013, 4/14/2013, 4/13/2013, 4/12/2013

 i.e. I need to create a new vector as given below which I need to use for
 some other purpose.

 Current_date
 4/15/2013
 4/14/2013
 4/13/2013
 4/12/2013
 Current_date
 4/15/2013
 4/14/2013
 4/13/2013
 4/12/2013
 Current_date
 4/15/2013
 4/14/2013
 4/13/2013
 4/12/2013

 Is it possible to construct such a
  column?

 Regards

 Katherine



 [[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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and provide commented, minimal, self-contained, reproducible code.


Re: [R] Creating a vector with repeating dates

2013-04-17 Thread Katherine Gobin
Dear Andrija Djurovic,

Thanks for the suggestion. Ia m aware of rep. However, here I need to repeat 
not only dates, but a string Current_date. Thus, I need to create a vector ( 
to be included in some other data.frame) with the name say dt which will 
contain

dt
Current_date

4/15/2013

4/14/2013

4/13/2013

4/12/2013

Current_date

4/15/2013

4/14/2013

4/13/2013

4/12/2013

Current_date

4/15/2013

4/14/2013

4/13/2013

4/12/2013

So this is combination of dates and a string. Hence, I am just wondering if it 
is possible to create such a vector or not?

Regards

Katherine


--- On Wed, 17/4/13, andrija djurovic djandr...@gmail.com wrote:

From: andrija djurovic djandr...@gmail.com
Subject: Re: [R] Creating a vector with repeating dates
To: Katherine Gobin katherine_go...@yahoo.com
Cc: r-help@r-project.org r-help@r-project.org
Date: Wednesday, 17 April, 2013, 10:14 AM

?rep

On Wed, Apr 17, 2013 at 11:11 AM, Katherine Gobin katherine_go...@yahoo.com 
wrote:

Dear R forum



I have a data.frame



df = data.frame(dates = c(4/15/2013, 4/14/2013, 4/13/2013, 4/12/2013), 
values = c(47, 38, 56, 92))



I need to to create a vector by repeating the dates as



Current_date, 4/15/2013, 4/14/2013, 4/13/2013, 4/12/2013,  Current_date, 
4/15/2013, 4/14/2013, 4/13/2013, 4/12/2013, Current_date, 4/15/2013, 4/14/2013, 
4/13/2013, 4/12/2013



i.e. I need to create a new vector as given below which I need to use for some 
other purpose.



Current_date

4/15/2013

4/14/2013

4/13/2013

4/12/2013

Current_date

4/15/2013

4/14/2013

4/13/2013

4/12/2013

Current_date

4/15/2013

4/14/2013

4/13/2013

4/12/2013



Is it possible to construct such a

 column?



Regards



Katherine







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and provide commented, minimal, self-contained, reproducible code.





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Re: [R] Creating a vector with repeating dates

2013-04-17 Thread Rui Barradas

Hello,

Try the following.

rep(c(Current_date, as.character(df$dates)), 3)


Hope this helps,

Rui Barradas

Em 17-04-2013 10:11, Katherine Gobin escreveu:

Dear R forum

I have a data.frame

df = data.frame(dates = c(4/15/2013, 4/14/2013, 4/13/2013, 4/12/2013), 
values = c(47, 38, 56, 92))

I need to to create a vector by repeating the dates as

Current_date, 4/15/2013, 4/14/2013, 4/13/2013, 4/12/2013,  Current_date, 
4/15/2013, 4/14/2013, 4/13/2013, 4/12/2013, Current_date, 4/15/2013, 4/14/2013, 4/13/2013, 4/12/2013

i.e. I need to create a new vector as given below which I need to use for some 
other purpose.

Current_date
4/15/2013
4/14/2013
4/13/2013
4/12/2013
Current_date
4/15/2013
4/14/2013
4/13/2013
4/12/2013
Current_date
4/15/2013
4/14/2013
4/13/2013
4/12/2013

Is it possible to construct such a
  column?

Regards

Katherine



[[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.



__
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.


Re: [R] Creating a vector with repeating dates

2013-04-17 Thread andrija djurovic
Hi.

Here are some examples that can maybe help you:

a - Current date
b - Sys.Date()-1:5
a
b

class(a)
class(b)

c(a,b)
mode(b)
as.numeric(b)
class(c(a,b))

c(a, as.character(b))
class(c(a,b))
class(c(a,as.character(b)))

Hope this helps.


On Wed, Apr 17, 2013 at 11:21 AM, Katherine Gobin katherine_go...@yahoo.com
 wrote:

 Dear Andrija Djurovic,

 Thanks for the suggestion. Ia m aware of rep. However, here I need to
 repeat not only dates, but a string Current_date. Thus, I need to create
 a vector ( to be included in some other data.frame) with the name say dt
 which will contain

 dt
 Current_date
 4/15/2013
 4/14/2013
 4/13/2013
 4/12/2013
 Current_date
 4/15/2013
 4/14/2013
 4/13/2013
 4/12/2013
 Current_date
 4/15/2013
 4/14/2013
 4/13/2013
 4/12/2013

 So this is combination of dates and a string. Hence, I am just wondering
 if it is possible to create such a vector or not?

 Regards

 Katherine


 --- On *Wed, 17/4/13, andrija djurovic djandr...@gmail.com* wrote:


 From: andrija djurovic djandr...@gmail.com
 Subject: Re: [R] Creating a vector with repeating dates
 To: Katherine Gobin katherine_go...@yahoo.com
 Cc: r-help@r-project.org r-help@r-project.org
 Date: Wednesday, 17 April, 2013, 10:14 AM

 ?rep


 On Wed, Apr 17, 2013 at 11:11 AM, Katherine Gobin 
 katherine_go...@yahoo.com http://mc/compose?to=katherine_go...@yahoo.com
  wrote:

 Dear R forum

 I have a data.frame

 df = data.frame(dates = c(4/15/2013, 4/14/2013, 4/13/2013,
 4/12/2013), values = c(47, 38, 56, 92))

 I need to to create a vector by repeating the dates as

 Current_date, 4/15/2013, 4/14/2013, 4/13/2013, 4/12/2013,
 Current_date, 4/15/2013, 4/14/2013, 4/13/2013, 4/12/2013, Current_date,
 4/15/2013, 4/14/2013, 4/13/2013, 4/12/2013

 i.e. I need to create a new vector as given below which I need to use for
 some other purpose.

 Current_date
 4/15/2013
 4/14/2013
 4/13/2013
 4/12/2013
 Current_date
 4/15/2013
 4/14/2013
 4/13/2013
 4/12/2013
 Current_date
 4/15/2013
 4/14/2013
 4/13/2013
 4/12/2013

 Is it possible to construct such a
  column?

 Regards

 Katherine



 [[alternative HTML version deleted]]


 __
 R-help@r-project.org http://mc/compose?to=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.




[[alternative HTML version deleted]]

__
R-help@r-project.org mailing list
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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.


Re: [R] Creating a vector with repeating dates

2013-04-17 Thread Jim Lemon

On 04/17/2013 07:11 PM, Katherine Gobin wrote:

Dear R forum

I have a data.frame

df = data.frame(dates = c(4/15/2013, 4/14/2013, 4/13/2013, 4/12/2013), 
values = c(47, 38, 56, 92))

I need to to create a vector by repeating the dates as

Current_date, 4/15/2013, 4/14/2013, 4/13/2013, 4/12/2013,  Current_date, 
4/15/2013, 4/14/2013, 4/13/2013, 4/12/2013, Current_date, 4/15/2013, 4/14/2013, 4/13/2013, 4/12/2013

i.e. I need to create a new vector as given below which I need to use for some 
other purpose.

Current_date
4/15/2013
4/14/2013
4/13/2013
4/12/2013
Current_date
4/15/2013
4/14/2013
4/13/2013
4/12/2013
Current_date
4/15/2013
4/14/2013
4/13/2013
4/12/2013

Is it possible to construct such a
  column?


Hi Katherine,
How about:

rep(c(Current date,paste(4,15:12,2013,sep=/)),3)

Jim

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R-help@r-project.org mailing list
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and provide commented, minimal, self-contained, reproducible code.


Re: [R] Creating a vector with repeating dates

2013-04-17 Thread Katherine Gobin
Dear Sir,

Thanks a lot for your valuable suggestions and help. 

Regards

Katherine


--- On Wed, 17/4/13, Jim Lemon j...@bitwrit.com.au wrote:

From: Jim Lemon j...@bitwrit.com.au
Subject: Re: [R] Creating a vector with repeating dates
To: Katherine Gobin katherine_go...@yahoo.com
Cc: r-help@r-project.org
Date: Wednesday, 17 April, 2013, 10:35 AM

On 04/17/2013 07:11 PM, Katherine Gobin wrote:
 Dear R forum

 I have a data.frame

 df = data.frame(dates = c(4/15/2013, 4/14/2013, 4/13/2013, 
 4/12/2013), values = c(47, 38, 56, 92))

 I need to to create a vector by repeating the dates as

 Current_date, 4/15/2013, 4/14/2013, 4/13/2013, 4/12/2013,  Current_date, 
 4/15/2013, 4/14/2013, 4/13/2013, 4/12/2013, Current_date, 4/15/2013, 
 4/14/2013, 4/13/2013, 4/12/2013

 i.e. I need to create a new vector as given below which I need to use for 
 some other purpose.

 Current_date
 4/15/2013
 4/14/2013
 4/13/2013
 4/12/2013
 Current_date
 4/15/2013
 4/14/2013
 4/13/2013
 4/12/2013
 Current_date
 4/15/2013
 4/14/2013
 4/13/2013
 4/12/2013

 Is it possible to construct such a
   column?

Hi Katherine,
How about:

rep(c(Current date,paste(4,15:12,2013,sep=/)),3)

Jim


[[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.