On 28-Feb-11 15:51:17, JonC wrote:
> Hi, I am trying to simultaneously remove duplicate variables from two
> or more
> variables in a small R data.frame. I am trying to reproduce the SAS
> statements from a Proc Sort with Nodupkey for those familiar with SAS.
>
> Here's my example data :
>
> te
Jon,
you need to combine the conditions into one logical value, e.g. cond1 & cond2,
e.g. !duplicated(test$date) & !duplicated(test$var2)
However, I doubt that this is what you want: you remove too many rows (rows
whose single values appeared already, even if the combination is unique).
Have
Hi Jon,
I think you made a mistake in your desired output.
If it is indeed a mistake, then this should do:
test[!duplicated(test[,c("date","var2")]),]
HTH,
Ivan
PS: think about dput() when you want to share objects, in this case
dput(test)
Le 2/28/2011 16:51, JonC a écrit :
Hi, I am tryin
Hi, I am trying to simultaneously remove duplicate variables from two or more
variables in a small R data.frame. I am trying to reproduce the SAS
statements from a Proc Sort with Nodupkey for those familiar with SAS.
Here's my example data :
test <- read.csv("test.csv", sep=",", as.is=TRUE)
> t
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