natblaster

QR factorization of an m × n matrix A with m ≥ n is a pair of matrices A = QR

此文件为matlab实例源文件，用直接于实际应用中，可加以修改，应用广泛。(matlab)

low pass filtering to remove noise

基于matlab的各种优化算法，线性/非线性优化等等( various optimization algorithms based on Matlab.Linear/Nonlinear optimization)

《Matlab批量读写Excel转化csv格式并邮件发送》内含三个函数： 1、MyXlsWriteV1.m:在不关闭Excel文件时，将所有数据写入到Excel中，减少读写时间：内含Excel单元格转化函数； 2、xlsx2csv.m把路径path中的xlsx文件批量转换为csv文件 ； 3、LjwSendQQMailV1:发送电子邮件,可含附件。 ("Matlab batch conversion of read and write Excel csv format and send mail" includes three functions: 1, MyXlsWriteV1.m: without closing the Excel file, all the data is written to Excel, reducing Reading time: Embedded Excel cell transformation functions 2, xlsx2csv.m path path in the batch convert xlsx file to csv file 3, LjwSendQQMailV1: sending emails, may contain attachments.)

因子分析是指研究从变量群中提取共性因子的统计技术。最早由英国心理学家C.E.斯皮尔曼提出。因子分析可在许多变量中找出隐藏的具有代表性的因子。将相同本质的变量归入一个因子，可减少变量的数目，还可检验变量间关系的假设。(Factor analysis is the study of common factors extracted from the variable group statistical techniques. First proposed by British psychologist CE Spearman. Factor analysis can identify a representative factor to hide many variables. Will be essentially the same variables into one factor, can reduce the number of variables, but also test the hypothesis that the relationship between variables.)

传递矩阵法计算梁的横向振动频率，各种边界条件(Frequency calculate by TMM for beam vibration, free-free boundary conditions, simply supported)

说明：  lpi信号的生成，如lfm，多相编码，步进频信号，时频分析测试成像，(LPI signal generation, such as LFM, polyphase coding, step frequency signal, time-frequency analysis, test imaging,)

说明：  最新出的樽海鞘算法源码，供大家参考使用，准确无误(The latest bottle scabbard algorithm source code, for your reference)

时变参数的TGM（1，1）模型MATLAB的实现(Time-varying parameters of the TGM (1,1) model for the realization of MATLAB)