### About Dataset

Important remarks before using this dataset:

Each row can not be used independently, because is one of the three replications of one individual. Nature of data is dependent for each subject, but independent from one to another subject. So, traditional technique from machine learning can not be applied to this dataset, because those techniques are based on the independent nature of the instances. There are 240 instances but for only 80 subjects, so they are not independent. Techniques as those presented in Naranjo et al. (2016), Naranjo et al. (2017) or other specifically designed can be used.

The concept of replication considered here does not match the classical concept of statistical repeated measurements. The term 'replications' refers to the collection of features extracted from voice recordings belonging to the same subject. Since, in this context, features are extracted from multiple consecutive voice recordings from the same subject, in principle, the features should be identical. The imperfections in technology and the own biological variability result in non-identical replicated features that are more similar to one another than features from different subjects.

All information about how the dataset was generated is presented in Naranjo et al. (2016).

### Relevant Papers:

Naranjo, L., Pérez, C.J., Campos-Roca, Y., Martín, J.: Addressing voice recording replications for Parkinson’s disease detection. Expert Systems With Applications 46, 286-292 (2016)

Naranjo, L., Pérez, C.J., Martín, J., Campos-Roca, Y.: A two-stage variable selection and classification approach for Parkinson’s disease detection by using voice recording replications. Computer Methods and Programs in Biomedicine 142, 147-156 (2017)