h5read fails with error

[schloegl]

loading of hdf5 file fails with error :

x=h5read('ec013.156.nwb','/file_create_date')
HDF5-DIAG: Error detected in HDF5 (1.8.13) thread 140122874586880:
#000: ../../../src/H5Dio.c line 173 in H5Dread(): can't read data
major: Dataset
minor: Read failed
#1: ../../../src/H5Dio.c line 420 in H5D__read(): unable to set up type info
major: Dataset
minor: Unable to initialize object
#2: ../../../src/H5Dio.c line 952 in H5D__typeinfo_init(): unable to convert between src and dest datatype
major: Dataset
minor: Feature is unsupported
#3: ../../../src/H5T.c line 4535 in H5T_path_find(): no appropriate function for conversion path
major: Datatype
minor: Unable to initialize object
error: error when reading dataset

I've installed hdf5oct 0.4.0 in octave 4.0.0 on linux. The file is available from here:
https://portal.nersc.gov/project/crcns/download/nwb-1/hc-3/ec013.15.zip

The file can be loaded into matlab, and h5dump works also. Therefore, I'd assume it's a problem with hdf5oct.

[stegro]

Hello,
thank you very much for reporting. I think in this case the message is expected because reading string-typed datasets has just not been implemented by anyone so far (see the ToDo section in the Readme file) probably because we have not needed it ourselves. Someone should complete it though, I agree - also because there seems to be some activity concerning the integration of hdf5oct code into octave core (see patchbay at GNU octave's savanah page). Any volunteers?