
> i need help in my coding
> the first line and the second line works and the ggplot works
> when i have a code like this and i want to fetch a map and saves it to 
> a directory how can i put it
>  because it gives me an error message
> Error in load(GGemz) : bad 'file' argument
>
> GGemz <- ggooglemap(center=center,zoom=13,destfile="Emz.png")
> save(GGemz,file="GGemz.Rda")
> load(GGemz)
> and when i put the GGemz in brackets it gives me an error
> load(file="GGemz")
> Error in readChar(con, 5L, useBytes = TRUE) : cannot open the connection
> In addition:Warning message:
> In readChar(con, 5L, useBytes = TRUE) :
>
> i dont have a problem here
> ggplot()+
>   geom_tile(aes(x = lon, y = lat, fill = fill), data = GGemz)+
>   geom_jitter(aes(x=lon,y=lat, color=fieldworker),data=emz)+
>   scale_fill_identity()+
>   scale_x_continuous('Longitude', limits = lon_range) +
>   scale_y_continuous('Latitude', limits = lat_range) +
>   scale_colour_discrete('') +
>   opts(title = 'Invitation map of Emzinini, 2012') +
>   coord_equal()
>
> this code brings an error says
> Error in dev.copy2pdf(device = "x11", file = paste(mapdir, "EmzinoniGG.pdf",  :
>    no device to print from
> i am not sure what does the error mean
> dev.copy2pdf(device="x11",file=paste(mapdir,"EmzinoniGG.pdf",sep=""))
> dev.off()
> -- 
> Leah Mathibela
> mobile:078-3311-491
> work:087-7545-997
> www.nova.org.za

David Winsemius, MD
West Hartford, CT

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-- 
Leah Mathibela
mobile:078-3311-491
work:087-7545-997
www.nova.org.za


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