H5T_ops: Get details of HDF5 data types

In grimbough/rhdf5: R Interface to HDF5

Get details of HDF5 data types

Description

Get details of HDF5 data types

Usage

H5Tget_class(dtype_id)

H5Tget_nmembers(dtype_id)

Arguments

dtype_id

ID of HDF5 datatype to work with. Normally created with a function like H5Tcopy or H5Tenum_create.

Value

• H5Tget_class() returns an character vector of length 1 giving the class of the data type.

• H5Tget_nmembers() returns the number of members in the given datatype. Will fail with an error if the supplied datatype is not of type H5T_COMPUND or H5T_ENUM.

Examples

## create an enum datatype with two entries
tid <- H5Tenum_create(dtype_id = "H5T_NATIVE_UCHAR")
H5Tenum_insert(tid, name = "TRUE", value = 1L)
H5Tenum_insert(tid, name = "FALSE", value = 0L)

H5Tget_class(tid)
H5Tget_nmembers(tid)

grimbough/rhdf5 documentation built on Dec. 9, 2024, 8:40 p.m.