主要用于无偏灰色预测模型的计算，带入实际数据即可预测结果- Mainly used to calculate unbiased gray forecasting model into the actual data to predict results

排列熵在振动动信号中的应用，输入振动信号即可求取排列熵值，程序已调通，可以直接使用。(The permutation entropy is applied in the vibration signal, and the input vibration signal can be used to find the permutation entropy value. The program has been tuned and can be used directly.)