[R] Help with transpose please.

[Bert Gunter]

1. "The max number of columns based on this transpose of the DiagnosisCode
column (in this dataset) is 12 if that is important to know."

I count about 20 different DX codes in the data you show, so I don't know
what this means.

2. I was not able to unambiguously parse your request (I admit that I just
may be dense) , but maybe split() is what you want, at least to start with:

##untested in the absence of a reprex
## dat is your data frame

split(dat, dat$ClaimServiceID)


This will give you a list of data frames, one for eachClaimServiceID. You
can order each list however you like using, e.g. lapply() with order().

If I have missed your intent completely, just say so and hopefully someone
else can help. Or follow Ramesh's suggestion

Cheers,
Bert




Bert Gunter

"The trouble with having an open mind is that people keep coming along and
sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )

On Fri, Jun 22, 2018 at 4:43 AM, Bill Poling <Bill.Poling using zelis.com> wrote:

> Good morning.
>
>
> I have data in the form:
>
> head(Edit041IA, n=25)
>    ClaimServiceID  ClaimID DiagnosisCode
> 1       183056004 78044473          C562
> 2       183056004 78044473          C778
> 3       183056004 78044473          C784
> 4       183056004 78044473          C786
> 5       183056004 78044473         C7961
> 6       183056004 78044473         C7982
> 7       183056004 78044473         C7989
> 8       183056008 78044473          C562
> 9       183056008 78044473          C778
> 10      183056008 78044473          C784
> 11      183056008 78044473          C786
> 12      183056008 78044473         C7961
> 13      183056008 78044473         C7982
> 14      183056008 78044473         C7989
> 15      183139945 78078925        M79606
> 16      183139945 78078925         M7989
> 17      183139945 78078925          R600
> 18      183236728 78119632        H02831
> 19      183236728 78119632        H02832
> 20      183236728 78119632        H02834
> 21      183236728 78119632        H02835
> 22      183236728 78119632        H04123
> 23      183236728 78119632          Z411
> 24      183236728 78119632         H2513
> 25      183236728 78119632        H43813
>
> And wish to transpose to single record for single claimServiceID, ClaimID,
> and Dx1,Dx2,Dx3, etc:
>
> There can be multiple claimServiceIDs for a ClaimID so I want the unique
> ClaimServiceID as the identifier when I join this data back into a longer
> single record length file by that column.
>
>     claimServiceID ClaimID  Dx1   Dx2    Dx3  ...etc
> 1 183056004    78044473 C562 C778 C784 C786 C7961 ...etc
> 2 183056008    78044473 C562 C778 C784 C786 C7961 ...etc
>
>
> (If you would prefer the complete  dput of the 1272 records I will gladly
> provide .Names = c("ClaimServiceID",
>
> "ClaimID", "DiagnosisCode"), class = "data.frame", row.names = c(NA,
>
> -1272L))
>
>
>
> At the moment the classes are:
>
> classes <- as.character(sapply(Edit041IA, class))
>
> classes
>
> # [1] "integer"   "integer"   "character" <---but do not have to be if
> that helps its just that's how the csv load pulled them in
>
> The max number of columns based on this transpose of the DiagnosisCode
> column (in this dataset) is 12 if that is important to know.
>
> I have looked at a variety of webpages and cannot get this right,
>
> dta2 <- melt(dta1, id=c("ClaimServiceID","ClaimID"))
> View(dta2)
>  # https://www.r-bloggers.com/pivot-tables-in-r/
>
> # https://stackoverflow.com/questions/18449938/pivot-on-
> data-table-similar-to-rehape-melt-function
>
>
> dta3 <- cast(Edit041IA, ClaimServiceID ~ DiagnosisCode, ClaimID)
> View(dta3)
> dta3 <- cast(Edit041IA, DiagnosisCode ~ ClaimServiceID, ClaimID)
> View(dta3)
>
> dta3 <- melt(Edit041IA, id=c("ClaimServiceID"))
> View(dta3)
>
> dta3 <- aggregate(Edit041IA, by=list(ClaimServiceID, ClaimID,
> DiagnosisCode))
> View(dta3)
>
>
> dta3 <- aggregate(Edit041IA, by=list(ClaimServiceID))
> View(dta3)
>  # https://www.r-statistics.com/tag/transpose/
>
>  dta3 <- aggregate(Edit041IA, by=list(DiagnosisCode, ClaimServiceID,
> ClaimID))
> View(dta3)
>
>
> I am sure it's a basic,  simple procedure, but I am pressed for time on
> this one, any support will be greatly appreciated, thank you.
>
> WHP
>
>
>
>
>
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>
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