The module LSQ is for unconstrained linear least-squares fitting. It is based upon Applied Statistics algorithm AS 274 (see comments at the start of the module). A planar-rotation algorithm is used to update the QR- factorization. This makes it suitable for updating regressions as more data become available. The module contains a test for singularities which is simpler and quicker than calculating the singular-value decomposition. An important feature of the algorithm is that it does not square the condition number. The matrix X X is not formed. Hence it is suitable for ill- conditioned problems, such as fitting polynomials. By taking advantage of the MODULE facility, it has been possible to remove many of the arguments to routines. Apart from the new function VARPRD, and a back-substitution routine BKSUB2 which it calls, the routines behave as in AS 274.
资源简介：The module LSQ is for unconstrained linear least-squares fitting. It is based upon Applied Statistics algorithm AS 274 (see comments at the start of the module). A planar-rotation algorithm is used to update the QR- factorization. This m...
上传时间： 2015-05-14
上传用户：aig85
资源简介：A Matlab toolbox for exact linear time-invariant system identification is presented. The emphasis is on the variety of possible ways to implement the mappings from data to parameters of the data generating system. The considered system repr...
上传时间： 2013-12-28
上传用户：wfl_yy
资源简介：The view238 application is a simple tool for graphically displaying STEP-NC toolpaths. It is a Java application that reads AP-238 XML data using the DOM inferface, then finds and display the toolpaths within. At present, only polylines, and...
上传时间： 2013-12-02
上传用户：zhangliming420
资源简介：video editing for is streamlined for fast linear operations over video. It has batch-processing capabilities for processing large numbers of files and can be extended with third-party video filters. VirtualDub is mainly geared toward proces...
上传时间： 2014-01-06
上传用户：fhzm5658
资源简介：The concept of sustainable development has received growing recognition, but it is a new idea for many business executives. For most, the concept remains abstract and theoretical. Protecting an organization’s capital base is a well-acce...
上传时间： 2014-09-04
上传用户：498732662
资源简介：The concept of sustainable development has received growing recognition, but it is a new idea for many business executives. For most, the concept remains abstract and theoretical. Protecting an organization’s capital base is a well-acce...
上传时间： 2013-12-12
上传用户：362279997
资源简介：C/C++ implementation of the Levenberg-Marquardt non-linear least squares algorithm. levmar includes double and single precision LM versions, both with analytic and finite difference approximated jacobians
上传时间： 2013-12-28
上传用户：gxf2016
资源简介：This soucse code is for CodevisionAVR and RF2500 application driver code is all included.The point to point communication is realized.
上传时间： 2016-06-11
上传用户：kjl
资源简介：This is for qr and you can use it to calculate the engine value and engine vector
上传时间： 2017-01-19
上传用户：qiao8960
资源简介：a copylefted C/C++ implementation of the Levenberg-Marquardt non-linear least squares algorithm
上传时间： 2013-12-15
上传用户：大三三
