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25.3364
2004 Feb 04
3
Various newbie questions
Hello,
1) What is the difference between a "data frame" (J H Maindonald, Using
R, p. 12) and a "vector"?
In Using R, the author asks the reader to enter the following data in a
data frame, which I will call "mydata":
year snow.cover
1970 6.5
1971 12.0
1972 14.9
1973 10.0
1974 10.7
1975 7.9
...
mydata=data.frame(year=c(1970,...),snow.cover=c(6.5,...))
2) How to