[R] ifelse problem
Randy Walters
randy_walters at hotmail.com
Thu Dec 20 16:26:59 CET 2007
Could someone help me with the following code snippet. The results are not
what I expect:
> Sheet1$Claims[1:10]
[1] NA 1 2 NA NA NA NA NA NA NA
> Sheet1[1:10,"SubmissionStatus"]
[1] Declined Bound Bound Bound Bound Bound Declined
Dead Declined
[10] Not Taken
Levels: Bound Dead Declined Not Taken
> Sheet1$Claimsnum <- NA
> Sheet1$Claimsnum <- ifelse(Sheet1$SubmissionStatus != "Bound",99999,
+
ifelse(as.character(Sheet1$Claims)=="NA",0,Sheet1$Claims))
>
> Sheet1$Claimsnum[1:10]
[1] 99999 1 2 NA NA NA 99999 99999 99999 99999
>
Here is Str(Sheet1)
$ Claims : num NA 1 2 NA NA NA NA NA NA NA ...
$ SubmissionStatus : Factor w/ 4 levels "Bound","Dead",..: 3 1 1
1 1 1 3 2 3 4 ...
I would expect Sheet1$Claimsnum[4] to be 0, since the true condition of the
2nd ifelse evaluations to 0.
Without the "as.character" the results are still not the way I want them:
> Sheet1$Claimsnum <- ifelse(Sheet1$SubmissionStatus != "Bound",99999,
+ ifelse(Sheet1$Claims==NA,0,Sheet1$Claims))
> Sheet1$Claimsnum[1:10]
[1] 99999 NA NA NA NA NA 99999 99999 99999 99999
>
Much thanks!,
Randy
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