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If I have GUI as follows how can I add a checkbox that when you click on it,it gives you different files, then when you click on that file it gives you the information you are looking for, instead of me browsing for a file how do i turn it to be a csv or xls file check box. dlg <- aDialog(items=list( file=fileItem("", attr=list( filter=list("CSV or txt"=list(

> 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") >