Metadata
Get or set a metadata to a Raster object
## S4 method for signature 'Raster' metadata(x) metadata(x) <- value
x |
Raster* object |
value |
list with named elements. Each element may be another list of named elements (but these nested lists are not allowed to be lists themselves) |
Raster* object or list
The metadata can contain single values or vectors of basic data types (character, integer, numeric) and Date. Some other types may also be supported. You cannot use a matrix or data.frame as a meta-data element.
r <- raster(nc=10, nr=10)
values(r) <- 1:ncell(r)
m <- list(wave=list(a=1, b=2, c=c('cool', 'important')), that=list(red='44', blue=1:5,
days=as.Date(c('2014-1-15','2014-2-15'))), this='888 miles from here', today=NA)
metadata(r) <- m
## Not run:
x <- writeRaster(r, rasterTmpFile(), overwrite=TRUE)
metax <- metadata(x)
identical(metax, m)
# nested too deep
badmeta1 <- list(wave=list(a=1, b=2, c='x'), that=list(red='4', blue=list(bad=5)))
metadata(r) <- badmeta1
# missing names
badmeta2 <- list(wave=list(1, 2, c='x'), that=list(red='44', blue=14), this='8m')
metadata(r) <- badmeta2
# matrix not allowed
badmeta3 <- list(wave=list(a=1, b=matrix(1:4, ncol=2), c='x'), that=list(red='4'))
metadata(r) <- badmeta3
## End(Not run)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.