R help - Mar 2011 - ) Error in eval(expr, envir, enclos) : object '' not found

> datafilename="E:/my documents/r/sex/bysex1.csv"
> data.sex=read.table(datafilename,header=T)
> data.sex
       y.sex.age.region.c.n
1   1980,F,A,N,-18.15,13.61
2   1980,F,A,N,-18.61,13.04
3   1980,F,A,N,-18.81,12.32
4    1990,F,A,N,-21.12,11.7
5   1990,F,A,N,-20.77,11.58
6    1990,F,A,N,-21.6,13.34
7    1990,F,A,N,-21.78,12.6
> model.anova<-aov(c~age*sex,data=data.sex)
Error in eval(expr, envir, enclos) : object 'age' not found


   i just wanna do a anova test. but the error message is as above,,,
   what should i do to shoot this problem ? Should i define the age?


--
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On Mar 23, 2011, at 9:31 AM, mipplor wrote:
>> datafilename="E:/my documents/r/sex/bysex1.csv"
>> data.sex=read.table(datafilename,header=T)
>> data.sex
>       y.sex.age.region.c.n
> 1   1980,F,A,N,-18.15,13.61
> 2   1980,F,A,N,-18.61,13.04
> 3   1980,F,A,N,-18.81,12.32
> 4    1990,F,A,N,-21.12,11.7
> 5   1990,F,A,N,-20.77,11.58
> 6    1990,F,A,N,-21.6,13.34
> 7    1990,F,A,N,-21.78,12.6
>
>> model.anova<-aov(c~age*sex,data=data.sex)
> Error in eval(expr, envir, enclos) : object 'age' not found
>
>
>   i just wanna do a anova test. but the error message is as above,,,
>   what should i do to shoot this problem ? Should i define the age?
You should read the help page for read.table more thoroughly with  
particular attention to the `sep` argument. At the moment you have one  
column in your data.frame.

-- 

David Winsemius, MD
West Hartford, CT

It looks like your column name has periods in it somewhere. Is your header 
separated by something other than commas?

look at:
names(data.sex)

or test by

"age" %in% names(data.sex)
--------------------------------------
Jonathan P. Daily
Technician - USGS Leetown Science Center
11649 Leetown Road
Kearneysville WV, 25430
(304) 724-4480
"Is the room still a room when its empty? Does the room,
 the thing itself have purpose? Or do we, what's the word... imbue it."
     - Jubal Early, Firefly

r-help-bounces at r-project.org wrote on 03/23/2011 09:31:40 AM:
> [image removed] 
> 
> [R] ) Error in eval(expr, envir, enclos) : object '' not found
> 
> mipplor 
> 
> to:
> 
> r-help
> 
> 03/23/2011 10:11 AM
> 
> Sent by:
> 
> r-help-bounces at r-project.org
> 
> > datafilename="E:/my documents/r/sex/bysex1.csv"
> > data.sex=read.table(datafilename,header=T)
> > data.sex
>        y.sex.age.region.c.n
> 1   1980,F,A,N,-18.15,13.61
> 2   1980,F,A,N,-18.61,13.04
> 3   1980,F,A,N,-18.81,12.32
> 4    1990,F,A,N,-21.12,11.7
> 5   1990,F,A,N,-20.77,11.58
> 6    1990,F,A,N,-21.6,13.34
> 7    1990,F,A,N,-21.78,12.6
> 
> > model.anova<-aov(c~age*sex,data=data.sex)
> Error in eval(expr, envir, enclos) : object 'age' not found
> 
> 
>    i just wanna do a anova test. but the error message is as above,,,
>    what should i do to shoot this problem ? Should i define the age?
> 
> 
> --
> View this message in context: http://r.789695.n4.nabble.com/Error-
> in-eval-expr-envir-enclos-object-not-found-tp3399503p3399503.html
> Sent from the R help mailing list archive at Nabble.com.
> 
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