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+! * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+! Copyright by The HDF Group. *
+! Copyright by the Board of Trustees of the University of Illinois. *
+! All rights reserved. *
+! *
+! This file is part of HDF5. The full HDF5 copyright notice, including *
+! terms governing use, modification, and redistribution, is contained in *
+! the files COPYING and Copyright.html. COPYING can be found at the root *
+! of the source code distribution tree; Copyright.html can be found at the *
+! root level of an installed copy of the electronic HDF5 document set and *
+! is linked from the top-level documents page. It can also be found at *
+! http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have *
+! access to either file, you may request a copy from help@hdfgroup.org. *
+! * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+!
+!
+! This example shows how to create a dataset in a particular group.
+! It opens the file created in the previous example and creates two datasets.
+! Absolute and relative dataset names are used.
+!
+! This example is used in the HDF5 Tutorial.
+
+PROGRAM H5_CRTGRPD
+
+ USE HDF5 ! This module contains all necessary modules
+
+ IMPLICIT NONE
+
+ CHARACTER(LEN=10), PARAMETER :: filename = "groupsf.h5" ! File name
+ CHARACTER(LEN=15), PARAMETER :: groupname = "MyGroup/Group_A" ! Group name
+ CHARACTER(LEN=13), PARAMETER :: dsetname1 = "MyGroup/dset1" ! Dataset name
+ CHARACTER(LEN=5), PARAMETER :: dsetname2 = "dset2" ! dataset name
+
+ INTEGER(HID_T) :: file_id ! File identifier
+ INTEGER(HID_T) :: group_id ! Group identifier
+ INTEGER(HID_T) :: dataset_id ! Dataset identifier
+ INTEGER(HID_T) :: dataspace_id ! Data space identifier
+
+ INTEGER :: i, j
+ INTEGER :: error ! Error flag
+
+ INTEGER, DIMENSION(3,3) :: dset1_data ! Data arrays
+ INTEGER, DIMENSION(2,10) :: dset2_data !
+
+ INTEGER(HSIZE_T), DIMENSION(2) :: dims1 = (/3,3/) ! Datasets dimensions
+ INTEGER(HSIZE_T), DIMENSION(2) :: dims2 = (/2,10/)!
+ INTEGER(HSIZE_T), DIMENSION(2) :: data_dims
+
+ INTEGER :: rank = 2 ! Datasets rank
+
+ !
+ !Initialize dset1_data array
+ !
+ DO i = 1, 3
+ DO j = 1, 3
+ dset1_data(i,j) = j;
+ END DO
+ END DO
+
+ !
+ !Initialize dset2_data array
+ !
+ DO i = 1, 2
+ DO j = 1, 10
+ dset2_data(i,j) = j;
+ END DO
+ END DO
+
+ !
+ ! Initialize FORTRAN interface.
+ !
+ CALL h5open_f(error)
+
+ !
+ ! Open an existing file.
+ !
+ CALL h5fopen_f (filename, H5F_ACC_RDWR_F, file_id, error)
+
+ !
+ ! Create the data space for the first dataset.
+ !
+ CALL h5screate_simple_f(rank, dims1, dataspace_id, error)
+
+ !
+ ! Create a dataset in group "MyGroup" with default properties.
+ !
+ CALL h5dcreate_f(file_id, dsetname1, H5T_NATIVE_INTEGER, dataspace_id, &
+ dataset_id, error)
+
+ !
+ ! Write the first dataset.
+ !
+ data_dims(1) = 3
+ data_dims(2) = 3
+ CALL h5dwrite_f(dataset_id, H5T_NATIVE_INTEGER, dset1_data, data_dims, error)
+
+ !
+ ! Close the dataspace for the first dataset.
+ !
+ CALL h5sclose_f(dataspace_id, error)
+
+ !
+ ! Close the first dataset.
+ !
+ CALL h5dclose_f(dataset_id, error)
+
+ !
+ ! Open an existing group in the specified file.
+ !
+ CALL h5gopen_f(file_id, groupname, group_id, error)
+
+ !
+ !Create the data space for the second dataset.
+ !
+ CALL h5screate_simple_f(rank, dims2, dataspace_id, error)
+
+ !
+ ! Create the second dataset in group "Group_A" with default properties.
+ !
+ CALL h5dcreate_f(group_id, dsetname2, H5T_NATIVE_INTEGER, dataspace_id, &
+ dataset_id, error)
+
+ !
+ ! Write the second dataset.
+ !
+ data_dims(1) = 2
+ data_dims(1) = 10
+ CALL h5dwrite_f(dataset_id, H5T_NATIVE_INTEGER, dset2_data, data_dims, error)
+
+ !
+ ! Close the dataspace for the second dataset.
+ !
+ CALL h5sclose_f(dataspace_id, error)
+
+ !
+ ! Close the second dataset.
+ !
+ CALL h5dclose_f(dataset_id, error)
+
+ !
+ ! Close the group.
+ !
+ CALL h5gclose_f(group_id, error)
+
+ !
+ ! Close the file.
+ !
+ CALL h5fclose_f(file_id, error)
+
+ !
+ ! Close FORTRAN interface.
+ !
+ CALL h5close_f(error)
+
+END PROGRAM H5_CRTGRPD