Full_Name: Sanford Weisberg Version: 1.9.1 OS: Win XP Submission from: (NULL) (160.94.148.2)
wm <- read.table(url("http://www.stat.umn.edu/~sandy/wmdata0.txt"),
header=TRUE)
mean(wm$Spd1)
[1] 7.7773
summary(wm$Spd1)
Min. 1st Qu. Median Mean 3rd Qu. Max. 0.222 4.780 7.550 7.780 10.200 21.600 The mean of this variable DOES NOT ROUND to the value shown in the summary output.
options(digits=6) mean(wm$Spd1)
[1] 7.77733
summary(wm$Spd1)
Min. 1st Qu. Median Mean 3rd Qu. Max. 0.222 4.780 7.550 7.780 10.200 21.600 This is still wrong. Also, the minimum value is 0.2221, which should have been printed in full given digits=6.