[R] Merging two data sets

Leeds, Mark (IED) Mark.Leeds at morganstanley.com
Thu Dec 7 15:32:22 CET 2006


if you read them in as zoo objects , you can then use merge.zoo but but
I need to
Send you an example of reading them in as zoo objects.
Hold on.

I also have your binders on my shelf ready to send. I've just been
forgetting/busy.



-----Original Message-----
From: r-help-bounces at stat.math.ethz.ch
[mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Megh Dal
Sent: Thursday, December 07, 2006 3:35 AM
To: r-help at stat.math.ethz.ch
Subject: [R] Merging two data sets

Dear all R users,
   
  Suppose I have two datasets:
   
  g = 
   
     8/11/2005                92.75 
     9/11/2005                92.30 
  10/11/2005                92.55 
  11/11/2005                93.90 
  11/14/2005                94.20 
  11/15/2005                94.40 
  11/16/2005                93.90 
  11/22/2005                94.60 
  11/24/2005                95.50 
  2/12/2005               101.00 
   
  and, 
   
  h = 
     11/8/2005    45.930
   11/9/2005    45.820
  11/10/2005   45.815
  11/11/2005   45.780
  11/12/2005    45.630
  11/13/2005    45.630
  11/14/2005    45.630
  11/15/2005    45.710
  11/16/2005    45.715
 11/17/2005     45.815
   
  I want to merge these two dataset like this:
   
     8/11/2005                92.75      NA
     9/11/2005                92.30      NA
  10/11/2005                92.55      NA
  11/11/2005                93.90     45.780
  11/14/2005                94.20     45.630
  11/15/2005                94.40     45.710
  11/16/2005                93.90     45.715
  11/22/2005                94.60      NA
  11/24/2005                95.50      NA
  2/12/2005               101.00       NA
   
  i.e. the length of final dataset should be same as 'g' regardless that
of 2nd dataset.
   
   
  Can anyone tell me how to do this?
   
  I already used ?merge function like this:
   
  h = merge(g,f, by.x="Date", by.y="Date", sort=F, all.x=T, all.y = F,
all=F)
   
  But it is not giving the thing that I want.
   
  Thanks


 
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