Read a matrix from an HDF5 file — read_hdf5 • delarr

Simple convenience function to read a matrix from an HDF5 dataset. For lazy/streaming access, use delarr_hdf5() instead.

Usage

read_hdf5(path, dataset)

Arguments

path: Path to the HDF5 file.
dataset: Name of the dataset to read.

Value

The matrix stored in the dataset.

Examples

# Write and read back
mat <- matrix(1:20, nrow = 4, ncol = 5)
tf <- tempfile(fileext = ".h5")
write_hdf5(mat, tf, "X")
read_hdf5(tf, "X")
#>      [,1] [,2] [,3] [,4] [,5]
#> [1,]    1    5    9   13   17
#> [2,]    2    6   10   14   18
#> [3,]    3    7   11   15   19
#> [4,]    4    8   12   16   20

# Clean up
unlink(tf)