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

uttara_n nilawar.uttara at gmail.com
Tue Sep 21 04:08:55 CEST 2010


I am absolutely new to R and I am aware of only a few basic command lines. I
was running a robust regression in R, using the following command line 

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)
summary (rfdmodel1)

But, I keep getting this error:

Error in eval(expr, envir, enclos) : 
  object 'TotalEmployment_2004' not found
> summary (rfdmodel1)
Error in summary(rfdmodel1) : object 'rfdmodel1' not found

I have tried using a different machine and that did not work either. Any
suggestions?

Uttara
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