On 02.11.2011 01:32, Tony wrote:
Hello, I need help getting two data sets to merge. The structure of
my
two data sets are:
str(bcusip)
'data.frame': 1391 obs. of 3 variables:
$ bond_id : Factor w/ 1391 levels "AAGH","AAGI",..: 1 2 3 4 5 6
$ Freq : num 41361 4126 5206 10125 45536 ...
$ CUSIP_ID: Factor w/ 1391 levels "00184AAC9","00184AAF2",..:
str(bdescr)
'data.frame': 3674 obs. of 7 variables:
$ bond_id : Factor w/ 3674 levels "AAGH ","AAGI ",..:
$ Issuer.Name: Factor w/ 635 levels "3M CO ","ABBOTT LABORAT
$ Coupon : num 6 6.75 6.5 5.95 5.55 5.9 5.72 5.87 6 6.75 ...
$ Maturity : Factor w/ 1076 levels "1/1/2015","1/1/2016",..:
$ Callable : Factor w/ 2 levels "No ","Yes ": 2 2 2 2 2
$ Moody.s : Factor w/ 20 levels "A1 ","A2 ","A3 ",..: 16 16 16
$ S.P : Factor w/ 22 levels "- ","A- ","A ",..: 15 15 15 15 1
Look at the levels above, in "bcusip" ist is "AAGH", on "bdescr" it is
"AAGH " (note the blanks! etc.
Uwe Ligges
I am trying to attach the descriptive variables in the first data set
to the
sample variables in the second data set.
My code worked in an example that I re-created from a tutorial, but
it
will not work on my data
Here is my data code:
### bond description
bdescr<-read.table(file="index3705.R.csv",header=TRUE,sep=",")
bdescr<- bdescr[!duplicated(bdescr$bond_id),]
### bond cusip number
bcusip = read.table(file="selected1526.R.csv",header=TRUE,sep=",")
bcusip<- bcusip[!duplicated(bcusip$bond_id),]
bcusip$Freq = as.numeric(bcusip$Freq)
And here is my attempt to merge: (I tried a few)
merge (bdescr,bcusip,by="bond_id",all=TRUE)
merge (bdescr,bcusip,by="bond_id")
merge (bdescr,bcusip)
superfile<- merge(bdescr,bcusip,by="bond_id",all=TRUE)
Thank you for any help. I am new and going crazy at the moment.
Sincerely,
Tony
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and provide commented, minimal, self-contained, reproducible code.
