| var.inq.nc {RNetCDF} | R Documentation |
Inquire about a NetCDF variable.
var.inq.nc(ncfile, variable)
ncfile |
Object of class "NetCDF" which points to the NetCDF dataset (as returned from open.nc). |
variable |
Either the ID or the name of the variable to be inquired. |
This function returns information about a NetCDF variable. Information about a variable include its name, its ID, its type, its number of dimensions, a vector of the dimension IDs of this variable and the number of attributes. The valid external NetCDF data types are NC_BYTE, NC_CHAR, NC_SHORT, NC_INT, NC_FLOAT, and NC_DOUBLE.
A list containing the following components:
id |
Variable ID. |
name |
Variable name. |
type |
External NetCDF data type. |
ndims |
Number of dimensions the variable was defined as using. |
dimids |
Vector of dimension IDs corresponding to the variable dimensions (NA for scalar variables). Order is leftmost varying fastest. |
natts |
Number of variable attributes assigned to this variable. |
Pavel Michna
http://www.unidata.ucar.edu/packages/netcdf/
## Create a new NetCDF dataset and define two dimensions
nc <- create.nc("foo.nc")
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))
## Inquire about these variables
var.inq.nc(nc, 0)
var.inq.nc(nc, "temperature")
close.nc(nc)