### Install Hypergraph-DB from Source - bash

Source: https://github.com/imoonlab/hypergraph-db/blob/main/README.md

Clones the Hypergraph-DB repository from GitHub and installs dependencies listed in the requirements file.

```bash
# Clone the repository
git clone https://github.com/iMoonLab/Hypergraph-DB.git
cd Hypergraph-DB

# Install dependencies (if any)
pip install -r requirements.txt
```

--------------------------------

### Install Stable Hypergraph-DB via pip (Bash)

Source: https://github.com/imoonlab/hypergraph-db/blob/main/docs/get_started/install.rst

Installs the stable version (0.1.0) of the Hypergraph-DB library using the pip package manager. This command fetches the package from PyPI.

```bash
pip install hypergraph-db
```

--------------------------------

### Install Hypergraph-DB via pip - bash

Source: https://github.com/imoonlab/hypergraph-db/blob/main/README.md

Installs the Hypergraph-DB library from the Python Package Index using the pip package manager.

```bash
pip install hypergraph-db
```

--------------------------------

### Install Nightly Hypergraph-DB via pip (Bash)

Source: https://github.com/imoonlab/hypergraph-db/blob/main/docs/get_started/install.rst

Installs the nightly development version (0.1.1) of the Hypergraph-DB library directly from the GitHub repository using pip. This version may be unstable.

```bash
pip install git+https://github.com/iMoonLab/Hypergraph-DB.git
```

--------------------------------

### Query Vertices and Hyperedges - Python

Source: https://github.com/imoonlab/hypergraph-db/blob/main/README.md

Demonstrates how to retrieve all vertex and hyperedge IDs, and how to query specific vertices and hyperedges by their ID or tuple to get their properties.

```python
# Get all vertices and hyperedges
print(hg.all_v)
print(hg.all_e)

# Query a specific vertex
print(hg.v(1))

# Query a specific hyperedge
print(hg.e((1, 2, 3)))
```

--------------------------------

### Query Neighbors and Incident Edges - Python

Source: https://github.com/imoonlab/hypergraph-db/blob/main/README.md

Provides examples of how to find neighboring vertices connected to a given vertex via hyperedges and how to find all hyperedges incident to a vertex.

```python
# Get neighbors of a vertex
print(hg.nbr_v(1))
hg.add_e((1, 4, 6), {"relation": "team"})
print(hg.nbr_v(1))

# Get incident hyperedges of a vertex
print(hg.nbr_e_of_v(1))
```

--------------------------------

### Create and Populate Hypergraph - Python

Source: https://github.com/imoonlab/hypergraph-db/blob/main/README.md

Initializes a HypergraphDB instance and adds multiple vertices with properties and hyperedges connecting various vertices with properties.

```python
from hyperdb import HypergraphDB

# Initialize the hypergraph
hg = HypergraphDB()

# Add vertices
hg.add_v(1, {"name": "Alice", "age": 30, "city": "New York"})
hg.add_v(2, {"name": "Bob", "age": 24, "city": "Los Angeles"})
hg.add_v(3, {"name": "Charlie", "age": 28, "city": "Chicago"})
hg.add_v(4, {"name": "David", "age": 35, "city": "Miami"})
hg.add_v(5, {"name": "Eve", "age": 22, "city": "Seattle"})
hg.add_v(6, {"name": "Frank", "age": 29, "city": "Houston"})
hg.add_v(7, {"name": "Grace", "age": 31, "city": "Phoenix"})
hg.add_v(8, {"name": "Heidi", "age": 27, "city": "San Francisco"})
hg.add_v(9, {"name": "Ivan", "age": 23, "city": "Denver"})
hg.add_v(10, {"name": "Judy", "age": 26, "city": "Boston"})

# Add hyperedges
hg.add_e((1, 2, 3), {"type": "friendship", "duration": "5 years"})
hg.add_e((1, 4), {"type": "mentorship", "topic": "career advice"})
hg.add_e((2, 5, 6), {"type": "collaboration", "project": "AI Research"})
hg.add_e((4, 5, 7, 9), {"type": "team", "goal": "community service"})
hg.add_e((3, 8), {"type": "partnership", "status": "ongoing"})
hg.add_e((9, 10), {"type": "neighbors", "relationship": "friendly"})
hg.add_e((1, 2, 3, 7), {"type": "collaboration", "field": "music"})
hg.add_e((2, 6, 9), {"type": "classmates", "course": "Data Science"})
```

--------------------------------

### Save and Load Hypergraph - Python

Source: https://github.com/imoonlab/hypergraph-db/blob/main/README.md

Demonstrates how to save the current state of the hypergraph to a file using serialization and how to load a hypergraph from a previously saved file.

```python
# Save the hypergraph to a file
hg.save("my_hypergraph.hgdb")

# Load the hypergraph from a file
hg2 = HypergraphDB(storage_file="my_hypergraph.hgdb")
print(hg2.all_v)
print(hg2.all_e)
```

--------------------------------

### Calculate Vertex and Hyperedge Degrees - Python

Source: https://github.com/imoonlab/hypergraph-db/blob/main/README.md

Illustrates how to calculate the degree of a vertex (number of incident hyperedges) and the degree of a hyperedge (number of vertices it connects).

```python
# Get the degree of a vertex
print(hg.degree_v(1))

# Get the degree of a hyperedge
print(hg.degree_e((2, 5, 6)))
```

--------------------------------

### Update and Remove Graph Elements - Python

Source: https://github.com/imoonlab/hypergraph-db/blob/main/README.md

Shows how to update the properties of an existing vertex and how to remove vertices and hyperedges from the graph, demonstrating the resulting state.

```python
# Update a vertex
hg.update_v(1, {"name": "Smith"})
print(hg.v(1))

# Remove a vertex
hg.remove_v(3)
print(hg.all_v)
print(hg.all_e)

# Remove a hyperedge
hg.remove_e((1, 4))
print(hg.all_e)
```

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