prec4

这个文件中写了对于一个德国医药品牌在中国销售额基于时间的预测，运用了机器学习算法。(This document describes a time-based forecast of sales of a German pharmaceutical brand in China, using machine learning algorithms.)

说明：  Introduction In this blog, we examine the issue of identifying unit roots in the presence of structural breaks. We will use the quarterly US current account to GDP ratio to compare results from a number of unit root test.

十二音阶和八度分频的硬件描述语言VHDL程序，测试通过成功-12 sub-octave scale and frequency of the hardware description language VHDL procedures, test the success of

一个典当行的业务管理系统程序，由于业务比较专业可以供某个典当行使用。但是由于每个典当行的业务在细节上会有不同，所以可以在此基础上作二次开发。主要内容：录入，查询，报表-a business process management system that can be more professional business for a particular use Pawnshop. However, because each business Pawnshop on the details will be different, so it can be the basis for further development. Main elements : entry, query, reporting

picc程序，用于湿度传感器sht15系列(picc procedures, for the humidity sensor sht15 series)

非线性光纤光学（第四版）的源代码，美国人写的-Nonlinear Fiber Optics (Fourth Edition) of the source code, written by the Americans

声学传播模型的源代码，UMPE模型 ，射线传播模型等 matlab编写(Source Code of UMPE Model ,Ray Model Acoustic Propagation Model)

说明：  使用matlab平台学习一些神经网络 RBF神经网络很厉害的 呃呃呃(Using matlab platform to learn some RBF neural networks which are very powerful hiccups)

经典VBScript学习资料，欢迎共同学习提高，(vbs)

Ansys经典资料――关于后处理及高级分析技术-Ansys classic information- on the post-processing and advanced analysis techniques