[R] Error in eval(expr, envir, enclos)

[Joshua Wiley]

Hello Uttara,

What happens if you try something like this?

Regression <- read.table("C:/MUP/Internship/Distance_Statistics/Excel_data/Robust_Regression/ForModelling_Rev_Rob.csv",
sep= ",", header = TRUE)

library (MASS)

rfdmodel1 <- rlm(TotalEmployment_2004 ~ MISSISSIPPI + LOUISIANA +
TotalEmployment_2000 + PCWhitePop_2004 + UnemploymentRate_2004 +
PCUrbanPop2000 + PCPeopleWithACollegeDegree_2000 +
PCPopulation.of.or.over.65.years.of.age_2004, data = Regression)

summary(rfdmodel1)

Rather than using attach() on your data, you can just use the variable
name you assigned it to (here "Regression"), and pass that to the
'data' argument of rlm().  So the data that rlm() is fitting the model
to is "Regression", and the output of rlm() (that is the actual model)
is assigned to "rfdmodel1".

Hope that helps,

Josh

On Tue, Sep 21, 2010 at 8:02 AM, uttara_n <nilawar.uttara at gmail.com> wrote:
>
> I used the following command line:
>
> Regression <- read.table
> ("C:/MUP/Internship/Distance_Statistics/Excel_data/Robust_Regression/ForModelling_Rev_Rob.csv"
> , sep= ",", header = TRUE)
> attach (Regression)
> summary (Regression)
>
> library (MASS)
> rlm(TotalEmployment_2004 ~ MISSISSIPPI + LOUISIANA + TotalEmployment_2000 +
> PCWhitePop_2004 + UnemploymentRate_2004 + PCUrbanPop2000 +
> PCPeopleWithACollegeDegree_2000 +
> PCPopulation.of.or.over.65.years.of.age_2004, data = rfdmodel1)
>
> But, it is still giving me the same error.
>
> Uttara
> --
> View this message in context: http://r.789695.n4.nabble.com/Error-in-eval-expr-envir-enclos-tp2547917p2548804.html
> Sent from the R help mailing list archive at Nabble.com.
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>



-- 
Joshua Wiley
Ph.D. Student, Health Psychology
University of California, Los Angeles
http://www.joshuawiley.com/