用斜率的方法來求時(shí)間序列的lyapunov exponent,在非線性動(dòng)力學(xué)和時(shí)間序列處理中經(jīng)常用到。很實(shí)用的小程序。
標(biāo)簽: lyapunov exponent 時(shí)間序列 斜率
上傳時(shí)間: 2014-01-20
上傳用戶:wl9454
計(jì)算微分方程系統(tǒng)的Lyapunv exponent,在非線性動(dòng)力學(xué)和有關(guān)混沌的研究中非常有用。
標(biāo)簽: exponent Lyapunv 計(jì)算 微分方程
上傳時(shí)間: 2015-08-28
上傳用戶:hj_18
計(jì)算Detrended Fluctuation exponent(DFA)指數(shù)
標(biāo)簽: Fluctuation Detrended exponent DFA
上傳時(shí)間: 2015-10-30
上傳用戶:秦莞爾w
這是求一個(gè)最大Lyapunov指數(shù)(largest Lyapunov exponent)的matlab預(yù)案程序代碼。
標(biāo)簽: Lyapunov exponent largest matlab
上傳時(shí)間: 2014-01-07
上傳用戶:xyipie
function [U,center,result,w,obj_fcn]= fenlei(data) [data_n,in_n] = size(data) m= 2 % exponent for U max_iter = 100 % Max. iteration min_impro =1e-5 % Min. improvement c=3 [center, U, obj_fcn] = fcm(data, c) for i=1:max_iter if F(U)>0.98 break else w_new=eye(in_n,in_n) center1=sum(center)/c a=center1(1)./center1 deta=center-center1(ones(c,1),:) w=sqrt(sum(deta.^2)).*a for j=1:in_n w_new(j,j)=w(j) end data1=data*w_new [center, U, obj_fcn] = fcm(data1, c) center=center./w(ones(c,1),:) obj_fcn=obj_fcn/sum(w.^2) end end display(i) result=zeros(1,data_n) U_=max(U) for i=1:data_n for j=1:c if U(j,i)==U_(i) result(i)=j continue end end end
標(biāo)簽: data function exponent obj_fcn
上傳時(shí)間: 2013-12-18
上傳用戶:ynzfm
1. 實(shí)現(xiàn)原理: * 任何一個(gè)數(shù)都可以表示成指數(shù)形式,如下所示: * * N=nEe (0=<n的絕對(duì)值<=1,e為10的指數(shù)冪) * * 例如100可以表示成1E2,1001可以表示成1.01E3 * * 類 CBigNumber的成員number為上述的n,exponent為上述的e * * 2. 如何使用這個(gè)類: * * 你可以把CBigNumber的頭文件和實(shí)現(xiàn)函數(shù)加入你的工程,然后定義 * * 該類的實(shí)例,就可以對(duì)這些實(shí)例進(jìn)行加減乘除了(詳見示例程序)
標(biāo)簽:
上傳時(shí)間: 2013-12-31
上傳用戶:gtf1207
Distribution generator Here is a simple generator which can build some distributions with given properties. Distributions generator (compile with -lm) Typical use might be: ./distributions -u -m 1 -M 10 -n 100 -s 500 Generates a distribution of 100 uniform random numbers between 1 and 10, such that the sum of numbers is 500. ./distributions -p -2.2 -m 1 -M 100 -n 200 -s 500 Idem with 200 numbers between 1 and 100 following a power law with exponent -
標(biāo)簽: generator distributions Distribution simple
上傳時(shí)間: 2014-01-27
上傳用戶:sammi
本程序是11位帶符號(hào)位的乘法器,其中最高位為符號(hào)位(sign),中間7位是指數(shù)部分(exponent),最后3位是尾數(shù)(Matissa)。表示數(shù)據(jù)的范圍是-2^-63-----+2^64.該工程文件有完整的程序,以及波形,驗(yàn)證正確。
上傳時(shí)間: 2013-12-31
上傳用戶:大三三
SFLOP simulates a floating point operation x op y where op = +, -, *, / In chopping or rounding arithmetic using an m digit mantissa, base 10, and an unrestricted exponent range. (sflop: Simulate FLOating Point operation.) For more details on the how the floating point representation of a number is computed see the function sfl.
標(biāo)簽: simulates operation floating SFLOP
上傳時(shí)間: 2017-06-05
上傳用戶:fxf126@126.com
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