Hi, The below very strange:
# a) aov function av <- aov(Sepal.Length ~ Species, data=iris) # Error in parse(text = x) : # unexpected symbol in "Sepal(Sepal.Length+Species)Length" av <- aov(iris[, 1] ~ iris[, 5]) # summary(av) # Df Sum Sq Mean Sq F value Pr(>F) # iris[, 5] 2 63.2 31.6 119 <2e-16 *** # Residuals 147 39.0 0.3 # --- # Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 # b) lm function lm1 <- lm(Sepal.Length ~ Sepal.Width, data=iris) # Error in parse(text = x) : # unexpected symbol in "Sepal(Sepal.Length+Sepal.Width)Length" lm1 <- lm(iris[, 1] ~ iris[, 2]) summary(lm1) # Call: # lm(formula = iris[, 1] ~ iris[, 2]) # # Residuals: # Min 1Q Median 3Q Max # -1.556 -0.633 -0.112 0.558 2.223 # # Coefficients: # Estimate Std. Error t value Pr(>|t|) # (Intercept) 6.526 0.479 13.63 <2e-16 *** # iris[, 2] -0.223 0.155 -1.44 0.15 # --- # Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 # # Residual standard error: 0.82 on 148 degrees of freedom # Multiple R-squared: 0.0138, Adjusted R-squared: 0.00716 # F-statistic: 2.07 on 1 and 148 DF, p-value: 0.152 I'm wrong or is it a bug? platform i386-pc-mingw32 arch i386 os mingw32 system i386, mingw32 status Patched major 2 minor 8.1 year 2009 month 01 day 22 svn rev 47680 language R version.string R version 2.8.1 Patched (2009-01-22 r47680) Thanks, -- ///\\\///\\\///\\\///\\\///\\\///\\\///\\\///\\\ 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.
