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File NetCDF

Modulo dati comune di rete

Leggere o scrivere file netCDF utilizzando le funzioni di alto livello di MATLAB® o le funzioni di basso livello del pacchetto della libreria netCDF. Le funzioni di alto livello semplificano il processo di lettura dei dati da un file netCDF o di scrittura di una variabile dal workspace di MATLAB in un file netCDF.

Per un maggiore controllo sul processo di lettura e scrittura, utilizzare il pacchetto della libreria NetCDF contenente funzioni di basso livello. Le funzioni di basso livello consentono un maggiore controllo sul processo di lettura e scrittura fornendo l'accesso alle routine della libreria NetCDF C.

MATLAB supporta la versione 4.8.1 di netCDF.

Funzioni

espandi tutto

nccreateCreate variable in netCDF file
ncdispDisplay contents of netCDF data source in Command Window
ncinfo Return information about netCDF data source
ncreadRead data from variable in netCDF data source
ncreadattRead attribute value from netCDF data source
ncwriteWrite data to netCDF file
ncwriteattWrite attribute to netCDF file
ncwriteschemaAdd netCDF schema definitions to netCDF file

Funzioni della libreria

netcdf.getChunkCacheRetuen default chunk cache settings for netCDF library
netcdf.inqLibVersReturn NetCDF library version information
netcdf.setChunkCache
netcdf.setDefaultFormatChange default netCDF file format

Operazioni sui file

netcdf.abortRevert recent netCDF file definitions
netcdf.closeClose netCDF file
netcdf.createCreate new netCDF dataset
netcdf.endDefEnd netCDF file define mode
netcdf.inqReturn information about netCDF file
netcdf.inqFormatDetermine format of NetCDF file
netcdf.inqGrpsRetrieve array of child group IDs
netcdf.inqUnlimDims
netcdf.openOpen NetCDF data source
netcdf.reDefPut open netCDF file into define mode
netcdf.setFillSet netCDF fill mode
netcdf.syncSynchronize netCDF file to disk

Dimensioni

netcdf.defDimCreate netCDF dimension
netcdf.inqDimReturn netCDF dimension name and length
netcdf.inqDimIDReturn dimension ID
netcdf.renameDimChange name of netCDF dimension

Gruppi

netcdf.defGrpCreate group in NetCDF file
netcdf.inqDimIDsRetrieve list of dimension identifiers in group
netcdf.inqGrpNameRetrieve name of group
netcdf.inqGrpNameFullComplete pathname of group
netcdf.inqGrpParentRetrieve ID of parent group
netcdf.inqNcid
netcdf.inqVarIDs

Variabili

netcdf.defVarFillDefine fill parameters for netCDF variable
netcdf.defVarCreate netCDF variable
netcdf.defVarChunkingDefine chunking behavior for netCDF variable
netcdf.defVarDeflateDefine compression parameters for netCDF variable
netcdf.defVarFletcher32Define checksum parameters for netCDF variable
netcdf.getVarRead data from netCDF variable
netcdf.inqVarInformation about variable
netcdf.inqVarChunking
netcdf.inqVarDeflate
netcdf.inqVarFill
netcdf.inqVarFletcher32
netcdf.inqVarIDReturn ID associated with variable name
netcdf.putVarWrite data to netCDF variable
netcdf.renameVarChange name of netCDF variable

Attributi

netcdf.copyAttCopy attribute to new location
netcdf.delAttDelete netCDF attribute
netcdf.getAttReturn NetCDF attribute
netcdf.inqAttReturn information about netCDF attribute
netcdf.inqAttIDReturn ID of netCDF attribute
netcdf.inqAttNameReturn name of netCDF attribute
netcdf.putAttWrite NetCDF attribute
netcdf.renameAttChange name of attribute

Tipi definiti dall’utente

netcdf.defVlenDefine user-defined variable length array type (NC_VLEN) (Da R2022a)
netcdf.inqUserTypeReturn information about user-defined type (Da R2022a)
netcdf.inqVlenReturn information about user-defined NC_VLEN type (Da R2022a)

Utilità

netcdf.getConstantReturn numeric value of named constant
netcdf.getConstantNamesReturn list of constants known to netCDF library

Argomenti

Risoluzione dei problemi

Resolve Errors Reading OPeNDAP Data

When you have trouble reading OPeNDAP data, consider these factors.

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