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Alex Rivera
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What are the differences between concatenating strings with cat and paste ? In particular, I have the following questions. Why does R not use the double quote ( " ) when it prints the results of calling cat (but it uses quotes when using paste )? > cat("test") test > paste("test") [1] "test" Why do the functions length and mode , which are functions available for almost all objects in R, not "work" on cat ? > length(cat("test")) test[1] 0 > mode(cat("test")) test[1] "NULL" Why do C-style escape sequences work with cat , but not with paste ? > cat("1)Line1\n 2)Line2\n 3)Line3") 1)Line1 2)Line2 3)Line3 > paste("1)Line1\n 2)Line2\n 3)Line3") [1] "1)Line1\n 2)Line2\n 3)Line3" Why doesn't R's recycling rule work with cat ? > cat("Grade", c(2, 3, 4, 5)) Grade 2 3 4 5 > paste("Grade", c(2, 3, 4, 5)) [1] "Grade 2" "Grade 3" "Grade 4" "Grade 5"
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