When I run this code i get the following error messages

Error in mapgetg(database, gon, as.polygon, xlim, ylim) :
  NA/NaN/Inf in foreign function call (arg 6)
In addition: Warning messages:
1: In min(x, na.rm = na.rm) :
  no non-missing arguments to min; returning Inf
2: In max(x, na.rm = na.rm) :
  no non-missing arguments to max; returning -Inf

On Wed, Mar 4, 2009 at 5:27 PM, David Winsemius <dwinsemius@comcast.net>wrote:

> The example on the help page would seem to be completely on point if I
> understand your desire to be plotting text at particular long,lat
> coordinates:
>
> ?map
>
> text(long, lat, "text")
>
> #
> data(ozone)
> map("state", xlim = range(ozone$x), ylim = range(ozone$y))
> text(ozone$x, ozone$y, ozone$median)
> box()
>
> --
> David Winsemius
>
>
> On Mar 4, 2009, at 5:04 PM, Alina Sheyman wrote:
>
>  I am trying to overlay a data frame with lat and longitude(which refer to
>> zip codes) on the map of US that I get by using map ("states").
>> Is there anyway to do this or do I have to resort to using maptools?
>>
>> thank you
>>
>>        [[alternative HTML version deleted]]
>>
>> ______________________________________________
>> R-help@r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide
>> http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>>
>
>

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