Package index • nctools

Create and write netCDF files

Functions to create new netCDF files and write data or attributes.

write_ncdf(): Write data to a netCDF file

Inspect netCDF structure

Functions to inspect variables, dimensions, compression, and attributes.

ncvar_dim(): Get variable dimensions from a netCDF file
ncvar_size(): Get variable sizes from a netCDF file
ncdim_size(): Get dimension lengths from a netCDF file
ncdim_isUnlim(): Test whether dimensions are unlimited
ncvar_compression(): Get variable compression settings from a netCDF file
ncatt_get_all(): Get all attributes from variables or dimensions

Modify netCDF structure

Functions to rename, reconfigure, or update structural properties of existing files.

nc_rename(): Rename variables and dimensions in a netCDF file
nc_unlim(): Set a dimension as unlimited
ncvar_change_compression(): Change variable compression settings in a netCDF object
ncatt_put_all(): Write multiple attributes to a netCDF variable or file

Extract and transform variables

Functions to extract, subset, concatenate, or transform variables in netCDF files.

nc_extract(): Extract a variable to a new netCDF file
nc_subset(): Subset a variable in a netCDF file
nc_rcat(): Concatenate records of a variable across netCDF files
nc_apply(): Apply a function over margins of a netCDF variable
nc_loc(): Locate the depth where a variable reaches a given value
nc_changePrimeMeridian(): Change the prime meridian of a variable in a netCDF file

Summary statistics

Functions to compute summary statistics over margins of netCDF variables.

nc_mean() nc_min() nc_max(): Compute summary statistics of a netCDF variable
nc_quantile(): Compute sample quantiles of a netCDF variable

Longitude utilities

Helpers to detect and standardise longitude conventions.

checkLongitude(): Standardise longitude values to a selected prime meridian convention
findPrimeMeridian(): Identify the prime meridian convention from longitude values