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@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.