rhdf5: H5P_FILE_ACCESS – R documentation

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H5P_FILE_ACCESS

HDF5 Dataset Access Property List Interface

Description

The functions, macros, and subroutines listed here are used to manipulate dataset access property list objects in various ways, including to reset property values. With the use of property lists, HDF5 functions have been implemented and can be used in applications with many fewer parameters than would be required without property lists.

Usage

H5Pset_chunk_cache                 ( h5plist, rdcc_nslots, rdcc_nbytes, rdcc_w0 )

Arguments

`h5plist`	An object of class `H5IdComponent` representing a H5 property list identifier of class H5P_DATASET_ACCESS. See `H5Pcreate` or `H5Pcopy` to create an object of this kind.
`rdcc_nslots`	An integer. The number of chunk slots in the raw data chunk cache for this dataset.
`rdcc_nbytes`	An integer. The total size of the raw data chunk cache for this dataset.
`rdcc_w0`	double. The chunk preemption policy for this dataset.

Details

Interface to the HDF5 C-library libhdf5. See https://portal.hdfgroup.org/display/HDF5/Dataset+Access+Properties for further details. See H5P for documentation of more functions to manupulate property lists of other property list classes.

Value

The functions return the standard return value from their respective C-functions.

Author(s)

Bernd Fischer

References

https://portal.hdfgroup.org/display/HDF5

Examples

pid <- H5Pcreate("H5P_DATASET_ACCESS")
H5Pset_chunk_cache( pid, 100, 10000, 0.5)
H5Pclose(pid)

rhdf5

R Interface to HDF5

v2.34.0

Artistic-2.0

Authors

Bernd Fischer [aut], Mike Smith [aut, cre] (<https://orcid.org/0000-0002-7800-3848>), Gregoire Pau [aut], Martin Morgan [ctb], Daniel van Twisk [ctb]

Initial release