用于数据挖掘，疾病自动诊断，经济预测等领域。例如，探讨引发疾病的危险因素，建立Logistics回归模型，并根据此预测疾病发生的概率等(Used for data mining, disease automatic diagnosis, economic forecasting and other fields. For example, to explore the risk factors for disease, establish Logistics regression model, and predict the probability of disease occurrence.)