[R] Plotting multiple columns on same graph

[Andrew Perrin]

Thanks to all who replied - this is essentially what I ended up doing.

Andy Perrin

----------------------------------------------------------------------
Andrew J Perrin - andrew_perrin at unc.edu - http://www.unc.edu/~aperrin
 Assistant Professor of Sociology, U of North Carolina, Chapel Hill
      269 Hamilton Hall, CB#3210, Chapel Hill, NC 27599-3210 USA


On Fri, 8 Feb 2002, Scot W McNary wrote:

> 
> 
> Andrew,
> 
> What about preprocessing the dataset to remove NAs?
> 
> 
> eomit<-na.omit(efficacy.df)
> attach(eomit)
> rs<-cbind(complicated, havesay, dontcare)
> matplot(year, rs)
> matlines(year, rs)
> 
> 
> 
> 
> Scot
> 
> 
> --
>   Scot W. McNary  email:smcnary at charm.net
> 
> On Fri, 8 Feb 2002, Andrew Perrin wrote:
> 
> > 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       57
> > 9  1968          71      58       55
> > 10 1970          73      64       50
> > 11 1972          74      59       49
> > 12 1974          72      57       46
> > 13 1976          70      56       44
> > 14 1978          NA      53       45
> > 15 1980          71      59       43
> > 16 1982          NA      52       50
> > 17 1984          70      68       57
> > 18 1986          66      NA       43
> > 19 1988          66      50       37
> > 20 1990          65      34       23
> > 21 1992          63      57       37
> > 22 1994          73      34       22
> > 23 1996          60      38       24
> > 24 1998          71      46       25
> > 25 2000          NA      50       33
> >
> >
> > The ideal graph will show each of the three questions as a different
> > color line, with lines connecting years spanned by NA values.  What's the
> > easiest way to do this?
> >
> > Thanks.
> >
> > ----------------------------------------------------------------------
> > Andrew J Perrin - andrew_perrin at unc.edu - http://www.unc.edu/~aperrin
> >  Assistant Professor of Sociology, U of North Carolina, Chapel Hill
> >       269 Hamilton Hall, CB#3210, Chapel Hill, NC 27599-3210 USA
> >
> >
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> 

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