ruptures

Install the library using pip: `pip install ruptures`

Set `n_bkps` to an integer greater than 0, or use `n_bkps=None` for algorithms like Pelt that automatically select the number of change points.
```python
import ruptures as rpt
import numpy as np
signal = np.random.rand(100)
algo = rpt.Pelt(model="l2", n_bkps=None) # Correct
# Or: algo = rpt.Binseg(model="l2", n_bkps=1) # Correct, if a specific positive number is desired
```

Pass the input data array (e.g., a NumPy array) as the `signal` argument to the `fit` method.
```python
import ruptures as rpt
import numpy as np
signal = np.random.rand(100, 1)
algo = rpt.Pelt(model="l2")
algo.fit(signal) # Correct
```

Replace the `algo` parameter with `model` in the algorithm's constructor.
```python
import ruptures as rpt
# Incorrect: algo = rpt.Pelt(algo="l2")
algo = rpt.Pelt(model="l2") # Correct
```