Displaying 1 result from an estimated 1 matches for "havesay".
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haverty
2002 Feb 08
3
Plotting multiple columns on same graph
I'd like to produce a series of simple line graphs for my methods class
that show the three questions used on a repeated survey to make up a
particular index. The data frame is:
> efficacy.df
year complicated havesay dontcare
1 1952 71 68 63
2 1954 NA NA NA
3 1956 64 71 71
4 1958 NA NA NA
5 1960 59 72 73
6 1962 NA NA NA
7 1964 67 70 62
8 1966 69 60...