# a) aov > av <- aov(Sepal.Length ~ Species, data=iris) Error in parse(text = x) : unexpected symbol in "Sepal(Sepal.Length+Species)Length"
> traceback() 13: parse(text = x) 12: eval(parse(text = x)[[1]]) 11: formula(eval(parse(text = x)[[1]])) 10: formula.character(object, env = baseenv()) 9: formula(object, env = baseenv()) 8: as.formula(frml) 7: expand.formula(frml, colnames(data)) 6: model.matrix.formula(mt, mf, contrasts) 5: model.matrix(mt, mf, contrasts) 4: lm(formula = Sepal.Length ~ Species, data = iris, singular.ok = TRUE) 3: eval(expr, envir, enclos) 2: eval(lmcall, parent.frame()) 1: aov(Sepal.Length ~ Species, data = iris) # b) lm > lm1 <- lm(Sepal.Length ~ Sepal.Width, data=iris) Error in parse(text = x) : unexpected symbol in "Sepal(Sepal.Length+Sepal.Width)Length" > traceback() 10: parse(text = x) 9: eval(parse(text = x)[[1]]) 8: formula(eval(parse(text = x)[[1]])) 7: formula.character(object, env = baseenv()) 6: formula(object, env = baseenv()) 5: as.formula(frml) 4: expand.formula(frml, colnames(data)) 3: model.matrix.formula(mt, mf, contrasts) 2: model.matrix(mt, mf, contrasts) 1: lm(Sepal.Length ~ Sepal.Width, data = iris) HTH, -- ///\\\///\\\///\\\///\\\///\\\///\\\///\\\///\\\ Jose Claudio Faria Estatistica - prof. Titular UESC/DCET/Brasil joseclaudio.fa...@gmail.com joseclaudio.fa...@terra.com.br ///\\\///\\\///\\\///\\\///\\\///\\\///\\\///\\\ ______________________________________________ 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.
