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ica
利用原数据进行实验,并利用主成份分析后取样本。(Experimental use of the original data and the use of principal component analysis of a sample.)
- 2009-04-20 11:07:16下载
- 积分:1
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DateConvert
DateConvert:简单而快速的日期转换
DateConvert转换DATESTR(0)格式的日期向量或序列号和日期向后。
Matlab的DATENUM,DATEVEC和DATESTR接受各种不同意见,但结果他们是缓慢的。如果输入格式正是众所周知,转换可以更快:
DATENUM( 17 - 10 - 2009 11时08分23秒 ):2.97秒
DateConvert( 17 - 10 - 2009 11时08分23秒 , 号码 ):0.039秒
=>“1.3%(1000环,1.5GHz的奔腾- M的,利用Matlab 7.7)
DateConvert不*不*验证作为Matlab的日期函数输入日期:
DATEVEC( 32 - 2 - 2008 25:62:63 )的答复[2008 3 4 2 2 7]
DateConvert( 32 - 2 - 2008 25:61:67 , 载体 )的答复[2008 2 32 25 61 67]!
因此DateConvert几乎微不足道,但对速度进行了优化。我需要时间排序200 000邮票,并从217个减少到11秒的时间。
请运行单元测试TestDateVec检查的有效性和速度。
测试:利用Matlab 6.5,7.7,7.8,winxp的,32位。
纯Matlab代码,所以兼容性的MacOS,Linux操作系统,64位预期。
英语月份名称是必要的。(DateConvert: Simple but fast date conversion
DateConvert converts the DATESTR(0) format to a date vector or serial date number and backwards.
Matlab s DATENUM, DATEVEC and DATESTR accept a variety of inputs, but in consequence they are slow. If the input format is exactly known, the conversion can be much faster:
DATENUM( 17-Oct-2009 11:08:23 ): 2.97 sec
DateConvert( 17-Oct-2009 11:08:23 , number ): 0.039 sec
=> 1.3 (1000 loops, 1.5GHz Pentium-M, Matlab 7.7)
DateConvert does*not* validate the input date as Matlab s date functions:
DATEVEC( 32-Feb-2008 25:62:63 ) replies [2008 3 4 2 2 7],
DateConvert( 32-Feb-2008 25:61:67 , vector ) replies [2008 2 32 25 61 67] !
So DateConvert is nearly trivial, but optimized for speed. I needed it for sorting 200 000 time stamps and reduced the time from 217 to 11 sec.
Please run the unit-test TestDateVec to check validity and speed.
Tested: Matlab 6.5, 7.7, 7.8, WinXP, 32bit.
Pure Matlab code, so compat)
- 2010-07-05 11:59:46下载
- 积分:1
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test_gsvd
这是一个测试gsvd.m函数的matlab代码(This is a test gsvd.m function Matlab code)
- 2007-06-03 22:56:06下载
- 积分:1
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DCT2DPCA
基于对角DCT和2Dpca的matlab人脸识别源码。(right angle based on DCT and the Matlab 2Dpca Face Recognition source.)
- 2007-06-15 10:10:53下载
- 积分:1
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SVM
使用SVM中的1V1以及1VO算法实现对数据的分类以及matlab实现(Classification of data and implementation of matlab using 1V1 and 1VO algorithms in SVM)
- 2018-12-21 10:47:38下载
- 积分:1
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unified
统一混沌系统的simulink文件可以自己改变参数(unified chaotic system Simulink documents themselves can change the parameters)
- 2006-11-13 18:34:40下载
- 积分:1
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parta
Architecture Lab Part A,计算机系统导论实验作业(Architecture Lab Part A)
- 2013-12-26 15:11:42下载
- 积分:1
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horn-schunck
估计光流的经典算法H&S,经测试可以使用。(Estimates the optical flow for standard test sequences using H&S algorithm)
- 2009-11-24 11:03:22下载
- 积分:1
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Vibration-and-Acoustics-Research-Group---Group-Me
vibration poutre, diagnostic, rdm, bearing, gearbox, induction machine, my target is to make vibratory analysis and to extrac default origine frome current and vibration signal
- 2012-09-26 07:40:57下载
- 积分:1
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henonattractor
henon attractor for matlab
- 2013-03-19 04:36:07下载
- 积分:1