CDN加速镜像 | 设为首页 | 加入收藏夹
当前位置: 首页 资源下载 源码下载 数值算法/人工智能 数学计算/工程计算

文件名称:lsq

  • 所属分类:
  • 标签属性:
  • 上传时间:
    2008-10-13
  • 文件大小:
    56.51kb
  • 已下载:
    0次
  • 提 供 者:
  • 相关连接:
  • 下载说明:
    别用迅雷下载,失败请重下,重下不扣分!

介绍说明--下载内容来自于网络,使用问题请自行百度

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.-The module 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
(系统自动生成,下载前可以参看下载内容)

下载文件列表

LSQ
LSQ/Alan Miller's Fortran Software.htm
LSQ/find_sub.f90
LSQ/lsq.doc
LSQ/lsq.f90
LSQ/subset.f90
LSQ/testdate.txt
LSQ/tests
LSQ/tests/TEST1.F90
LSQ/tests/TEST2.F90
LSQ/tests/TEST3.F90
LSQ/tests/TEST4.F90
LSQ/tests/TEST5.F90
LSQ/tests/TEST6.F90
LSQ/tests/TEST7.F90
LSQ/tests/TEST8.F90
LSQ/tests/TEST9.F90
LSQ/tests/TESTS.DOC
LSQ/~$lsq.doc
www.dssz.com.txt

相关说明

  • 本站资源为会员上传分享交流与学习,如有侵犯您的权益,请联系我们删除.
  • 搜珍网是交换下载平台,只提供交流渠道,下载内容来自于网络,除下载问题外,其它问题请自行百度。更多...
  • 本站已设置防盗链,请勿用迅雷、QQ旋风等下载软件下载资源,下载后用WinRAR最新版进行解压.
  • 如果您发现内容无法下载,请稍后再次尝试;或换浏览器;或者到消费记录里找到下载记录反馈给我们.
  • 下载后发现下载的内容跟说明不相乎,请到消费记录里找到下载记录反馈给我们,经确认后退回积分.
  • 如下载前有疑问,可以通过点击"提供者"的名字,查看对方的联系方式,联系对方咨询.

相关评论

暂无评论内容.

发表评论

*快速评论: 推荐 一般 有密码 和说明不符 不是源码或资料 文件不全 不能解压 纯粹是垃圾
*内  容:
*验 证 码:
搜珍网 www.dssz.com