Thanks a lot Greg for your help.
This works fine.
Normally I use a vector to set the classes for the variables:
Classe<-cclasses <- c(rep("factor", 14), rep("numeric", 4))
Table1<-read.table("Name", sep = ";", colClasses = Classe)
How can I implement to set colClasses as ordererd factor here.
Following works not:
Classe<-cclasses <- c(rep("factor", 61), rep("numeric", 14), rep
("odered", 10))
Thanks in advance
Birgit
Am 23.08.2007 um 21:21 schrieb Greg Snow:
> The attach function only attachs a copy of the data (changes to the
> data don't show up in the attached copy). Also you need to tell R
> what to do with the result of as.ordered (where to save it).
>
> Try something like:
>
>> table$V3 <- as.ordered(table$V3)
>
> Or
>
>> table <- transform(table, V3=as.ordered(V3) )
>
> Hope this helps,
>
> --
> Gregory (Greg) L. Snow Ph.D.
> Statistical Data Center
> Intermountain Healthcare
> [EMAIL PROTECTED]
> (801) 408-8111
>
>
>
>> -----Original Message-----
>> From: [EMAIL PROTECTED]
>> [mailto:[EMAIL PROTECTED] On Behalf Of Birgit Lemcke
>> Sent: Thursday, August 23, 2007 11:28 AM
>> To: R Hilfe
>> Subject: [R] ordered factors in data.frame
>>
>> Hello I need a tiny peace of help. (PPC Mac Os X 10.4.10; R 2.5.1)
>>
>> I have a data.frame with numeric and factor variables.
>> I would like to convert same of the factors to ordered factors.
>>
>> I tried with:
>>
>> attach (table)
>>
>> as.ordered (V3)
>>
>> but this gives me only the V3 Vector as ordred back but in
>> the data.frame (str(Table)) it is still not ordered.
>>
>> How can I do that?
>>
>> Thanks for your help.
>>
>> I am still a beginner.
>>
>> Greetings
>>
>> Birgit
>>
>> Now I would like to
>> Birgit Lemcke
>> Institut für Systematische Botanik
>> Zollikerstrasse 107
>> CH-8008 Zürich
>> Switzerland
>> Ph: +41 (0)44 634 8351
>> [EMAIL PROTECTED]
>>
>>
>>
>>
>>
>>
>> [[alternative HTML version deleted]]
>>
>>
>
Birgit Lemcke
Institut für Systematische Botanik
Zollikerstrasse 107
CH-8008 Zürich
Switzerland
Ph: +41 (0)44 634 8351
[EMAIL PROTECTED]
[[alternative HTML version deleted]]
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