H5F: HDF5 File Interface

In rhdf5: R Interface to HDF5

Description

These functions are designed to provide file-level access to HDF5 files.

Usage

H5Fcreate           (name, flags = h5default("H5F_ACC"), fcpl = NULL,
                     fapl = NULL, native = FALSE)
H5Fopen             (name, flags = h5default("H5F_ACC_RD"), fapl = NULL, 
                     native = FALSE)
H5Fclose            (h5file)
H5Fflush            (h5file, scope = h5default("H5F_SCOPE"))
H5Fis_hdf5          (name, showWarnings = TRUE)
H5Fget_filesize     (h5file)
H5Fget_name         (h5obj)
H5Fget_create_plist (h5file)
H5Fget_access_plist (h5file)

Arguments

name	The filename of the HDF5 file.
flags	See h5const("H5F_ACC") for possible arguments.
fcpl	An object of class H5IdComponent representing a H5 file creation property list. See H5Pcreate, H5Pcopy to create an object of this kind.
fapl	An object of class H5IdComponent representing a H5 file access property list. See H5Pcreate, H5Pcopy to create an object of this kind.
native	An object of class logical. If TRUE, array-like objects are treated as stored in HDF5 row-major rather than R column-major orientation. Using native = TRUE increases HDF5 file portability between programming languages. A file written with native = TRUE should also be read with native = TRUE

.

h5file	An object of class H5IdComponent representing a H5 file identifier as created by H5Fcreate or H5Fopen.
scope	See h5const("H5F_ACC_RD") for possible arguments.
showWarnings	If TRUE (default), a warning is given if an open HDF5 handle exists for this file.
h5obj	An object of class H5IdComponent representing a H5 object identifier (file, group, or dataset). See H5Fcreate, H5Fopen, H5Gcreate, H5Gopen, H5Dcreate, or H5Dopen to create an object of this kind.

Details

Interface to the HDF5 C-library libhdf5. See https://portal.hdfgroup.org/display/HDF5/Files for further details.

Value

H5Fcreate and H5Fopen return an object of class H5IdComponent representing a H5 file identifier.

H5Fis_hdf5 returns TRUE, if the file is an HDF5 file, or FALSE otherwise. In the case the file doesn't exist, NA is returned.

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

Author(s)

Bernd Fischer

References

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

See Also

rhdf5

Examples

fid <- H5Fcreate("ex_H5F.h5")
fid
H5Fclose(fid)
fid2 <- H5Fopen("ex_H5F.h5")
fid2
H5Fclose(fid2)

rhdf5 documentation built on Nov. 8, 2020, 6:56 p.m.