Based on prior knowledge, Oldpeak is a numeric variable measured in depression. It indicates the ST depression induced by exercise relative to rest. Typically, a higher Oldpeak value suggests a greater severity of heart disease.

To analyze the relationship between Oldpeak and the presence of heart disease, we can consider the following typical values:

For target class 'no':
- Oldpeak = 0.0
- Oldpeak = 0.5
- Oldpeak = 1.0
- Oldpeak = 1.5
- Oldpeak = 2.0

For target class 'yes':
- Oldpeak = 2.0
- Oldpeak = 3.0
- Oldpeak = 4.0
- Oldpeak = 5.0
- Oldpeak = 6.0

Here is the dictionary representing the relationship between Oldpeak and the target variable:

```json
{
	"no": [0.0, 0.5, 1.0, 1.5, 2.0],
	"yes": [2.0, 3.0, 4.0, 5.0, 6.0]
}
```