R: Synchronize a NetCDF Dataset

sync.nc {RNetCDF} | R Documentation

## Synchronize a NetCDF Dataset

### Description

Synchronize an open NetCDF dataset to disk.

### Usage

    sync.nc(ncfile)

### Arguments

`ncfile` | Object of class "`NetCDF`" which points to the NetCDF dataset (as returned from `open.nc`).

### Details

This function offers a way to synchronize the disk copy of a NetCDF dataset with in-memory buffers. There are two reasons one might want to synchronize after writes: To minimize data loss in case of abnormal termination, or to make data available to other processes for reading immediately after it is written.

### Author(s)

Pavel Michna

### References

http://www.unidata.ucar.edu/software/netcdf/

### Examples

    ##  Create a new NetCDF dataset and define two dimensions
    nc <- create.nc("sync.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))

    ##  Define variable values
    mytime        <- c(1:2)
    mytemperature <- c(0.0, 1.1, 2.2, 3.3, 4.4, 5.5, 6.6, 7.7, 8.8, 9.9)

    ##  Put the data
    var.put.nc(nc, "time", mytime, 1, length(mytime))
    var.put.nc(nc, "temperature", mytemperature, c(1,1), c(5,2))

    ##  Synchronize to disk
    sync.nc(nc)

    ##  Now the data can be read
    var.get.nc(nc, 0)
    var.get.nc(nc, "temperature")

    close.nc(nc)

[Package RNetCDF version 1.9-1 Index]