java_houghDemo

说明：  一个有源滤波器的模型，可以直接运行，没有对交流电源的测量部分(An active power filter model, which can run directly, has no measurement part for AC power supply)

数据库复习题 数据库复习题，希望大家能用到。-Database database Exercises Exercises, I hope that everyone can use.

说明：  检测数据中存在的缺失值和异常值，可输出缺失值和缺失率，利用箱型图检测异常值(Detection of missing and abnormal values in data)

猜拳游戏Python实现。 猜拳游戏规则： 石头：握紧的拳头。 剪子：或称“剪刀”，中指和食指伸直，其余手指握紧。 布：五指伸直，张开手掌。手心向下，或向上，或竖直（拇指向上）。 每一个手势代表一个“武器”，互相克制的原则是：剪子剪不动石头（石头胜利）；布被剪子剪开（剪子胜利）；石头被布包裹（布胜利）。如果双方出示了一样的手势，就是平局。(Application of Guess boxing game with Python)

找出一个3x3数组的“鞍点”-find a 3x3 array of "saddle"

还记得当年可以改变游戏速度的小软件吗？貌似还是有需求的！(A tool for changing the speed of the software.)

Given N rational numbers in the form "numerator/denominator", you are supposed to calculate their sum. 输入描述: Each input file contains one test case. Each case starts with a positive integer N (<=100), followed in the next line N rational numbers "a1/b1 a2/b2 ..." where all the numerators and denominators are in the range of "long int". If there is a negative number, then the sign must appear in front of the numerator. 输出描述: For each test case, output the sum in the simplest form "integer numerator/denominator" where "integer" is the integer part of the sum, "numerator" < "denominator", and the numerator and the denominator have no common factor. You must output only the fractional part if the integer part is 0.(Input Description: Each input file contains one test case. Each case starts with a positive integer N (<=100), followed in the next line N rational numbers "a1/b1 a2/b2 ..." where all the numerators and denominators are in the range of "long int". If there is a negative number, then the sign must appear in front of the numerator. Output Description: For each test case, output the sum in the simplest form "integer numerator/denominator" where "integer" is the integer part of the sum, "numerator" < "denominator", and the numerator and the denominator have no common factor. You must output only the fractional part if the integer part is 0.)

谱估计（建立二阶AR模型）、利用FFT求解功率谱估计、利用AR模型的Yule-Walker方程求解模型参数等(Spectral estimation (the establishment of second-order AR model), using FFT to solve the power spectrum estimation using AR model of Yule-Walker equation model parameters such as)

视网膜眼底血管分割程序，malab实现，效果OK，大家可以学习。(Retinal fundus blood vessel segmentation program, malab implementation, the effect OK, you can learn.)

主程序为sperling.m 按要求导入加速度数据，运行即可(The main program is sperling.m Import the acceleration data as instruction and run the main program)