att.delete.nc(ncfile, variable, attribute)

##  Create a new NetCDF dataset and define two dimensions
file1 <- tempfile("att.delete_", fileext=".nc")
nc <- create.nc(file1)

dim.def.nc(nc, "station", 5)
dim.def.nc(nc, "time", unlim=TRUE)

##  Create two variables, one as coordinate variable
var.def.nc(nc, "time", "NC_INT", "time")
var.def.nc(nc, "temperature", "NC_DOUBLE", c(0,1))

##  Put some attributes
att.put.nc(nc, "temperature", "_FillValue", "NC_DOUBLE", -99999.9)
att.put.nc(nc, "NC_GLOBAL", "title", "NC_CHAR", "Data from Foo")

##  Delete these attributes
att.delete.nc(nc, "temperature", "_FillValue")
att.delete.nc(nc, "NC_GLOBAL", "title")

close.nc(nc)
unlink(file1)