[R] zoo plot warning messages - I don't know what they mean or how to inspect the data to figure this out

[stephen sefick]

I have a time series from 1933-2005 of precipitation at Fayetteville
NC.  I get the following error messages when I plot the zoo series.
Any help would be appreciated.  If you need the data I can dput it or
send the csv.  I didn't include it here because I didn't want to clog
up anybodies email account.  I know that this is not reproducible, and
I will send along the file if needed.

Warning messages:
1: In xy.coords(x, y, xlabel, ylabel, log) : NAs introduced by coercion
2: In lines.times(x.index, y[, i], col = col[[i]], pch = pch[[i]],  :
  NAs introduced by coercion

-- 
Stephen Sefick

Let's not spend our time and resources thinking about things that are
so little or so large that all they really do for us is puff us up and
make us feel like gods.  We are mammals, and have not exhausted the
annoying little problems of being mammals.

								-K. Mullis