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duandian12ľ³æ (СÓÐÃûÆø)
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·³´óÉñÃǰï°ï棬ÎÒÓÐÊý¾Ýx=2.822E-4£¬0.00495£¬0.00995£¬0.0197£¬0.03985£¬0.06047£¬0.07989£¬0.10009£¬0.14979£¬0.20018£¬0.24984£¬0.29978£¬0.39984£¬0.5003£¬0.60034£¬0.70045£¬0.79981£¬0.89997£¬0.99995£¬1.09996£¬1.19987£¬1.29989£¬1.40027£¬1.50004£¬1.59983£¬1.69939£¬1.79978£¬1.89995 y=7.5E-6£¬6.71875E-4£¬0.00391£¬0.0106£¬0.023£¬0.0358£¬0.04649£¬0.05719£¬0.08382£¬0.10749£¬0.13196£¬0.15581£¬0.20194£¬0.24542£¬0.2914£¬0.33464£¬0.37335£¬0.42031£¬0.46305£¬0.50221£¬0.54497£¬0.58705£¬0.62944£¬0.66904£¬0.71459£¬0.75343£¬0.79638£¬0.83817 ÏëÓ÷½³Ìy=y0*x*((1-y/y0)^a)*b*exp(-c/2311.3)½øÐÐÄâºÏ£¬Çó³ö²ÎÊýy0,a,b,c¡£¹òÇó¸÷λ֧ÏÂÕУ¬Ð¡µÜ²»Ê¤¸Ð¼¤.......... clc; clear A=[... 2.822E-4 7.5E-6 0.00495 6.71875E-4 0.00995 0.00391 0.0197 0.0106 0.03985 0.023 0.06047 0.0358 0.07989 0.04649 0.10009 0.05719 0.14979 0.08382 0.20018 0.10749 0.24984 0.13196 0.29978 0.15581 0.39984 0.20194 0.5003 0.24542 0.60034 0.2914 0.70045 0.33464 0.79981 0.37335 0.89997 0.42031 0.99995 0.46305 1.09996 0.50221 1.19987 0.54497 1.29989 0.58705 1.40027 0.62944 1.50004 0.66904 1.59983 0.71459 1.69939 0.75343 1.79978 0.79638 1.89995 0.83817]; format short g x=A(:,1);y=A(:,2); X=[x,y]; %y=y0*k0*x*((1-y/y0)^a)*exp(-H/2311.3) %y0=a(1),k0=a(2),a=a(3),H=a(4) fun=inline('a(1)*a(2)* x(:,1)*((1- x(:,2)/a(1)).^a(3))*exp(-a(2)/2311.3)-x(:,2)','a','x') a=nlinfit(x,y,fun,[1 1 1 1]) %{ figure(1) plot(x,y) figure(2) semilogy(x,y) figure(3) loglog(x,y) %} ²»ÖªÔõô»ØÊ¾ÍÊDz»¶Ô£¬Âé·³Ö¸µãһϠ|
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