The structure of the file describing neuron groups

Below is an example of the HDF5 file structure describing neuron groups:

<file_name>.h5

┗ nodes

┗ <population_name>

┣ node_type_id

┣ node_id

┣ node_group_id

┣ node_group_index

┗ <neuron_group>

┣ <group_attribute>

┣ ...

┗ dynamics_params

┣ <dynamic_attribute>

┗ ...

The table below shows the data items in the file describing the neuron groups.

The data items in the file describing neuron groups

Data item	Description
`nodes`	Mandatory item for defining groups.
`<population_name>`	Mandatory item containing the name of the population. There can be several populations.
`node_type_id`	Mandatory item containing a data set with an array of IDs of the neuron types in the population.
`node_id`	Mandatory item containing a data set with the indices of the neurons in the population.
`node_group_id`	Mandatory item containing a data set with the indices of the groups to which the neurons in the population belong.
`node_group_index`	Mandatory item containing a data set with the indexes of the neurons in the corresponding groups.
`<neuron_group>`	Mandatory item containing the ID of the neuron group.
`<group_attribute>`	One or several attributes of the group. The attributes are optional and depend on the neuron type. Each attribute is a data set.
`dynamics_params`	A group of optional dynamic attributes.
`<dynamic_attribute>`	One or several dynamic attributes. Each attribute is a data set with attribute values for each neuron in the group.