bonjour
j'ai une courbe expérimentale et une courbe numérique je veut que les deux courbes ont le meme abscisse car je veut aprés faire un calcul d'erreur.Le code représenté cidessous permet le calcul d'erreur,et contient la fonction interp1:
mais il sort un message d'erreur que les valeurs de X doivent être identique :
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19 function b = fonct(lam) global Uexp RFexp %lecture des données expérimentaux fid =fopen('données expérimentaux.m','r'); M = fscanf(fid,'%e',[1,1]); xy=fscanf(fid,'%e%e',[2,M]); xy1=xy'; Uexp=xy1(:,1) ; %vesteur colonne U2- déplacement 198 valeurs RFexp=xy1(:,2) ; %vecteur colonne RF2- réaction 198 valeurs mef(lam); rf4; (fonction détermine a partir d'un fichier.dat la matrice c(37,5)) Fint=interp1(Uexp,RFexp,-c(:,3),'spline'); Fsim= - c(:,5); (car je veut la norme de c(:,5)) b=0; ta=size(Fint,1); for i=1:ta X=((Fint(i)-Fsim(i))).^2; b=b+X; end
voila les données expérimentales :
198
et la matrice c :
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198 0 0 0.012204 0.00016374 0.025267 0.00032956 0.037584 0.00041247 0.050546 0.00049538 0.062609 0.00057829 0.075736 0.0006612 0.088061 0.0006612 0.10128 0.00082702 0.11366 0.00090993 0.12646 0.00090993 0.13887 0.00099284 0.15208 0.0010757 0.16566 0.0011587 0.1784 0.0012416 0.19105 0.0014074 0.20347 0.0014903 0.21639 0.0015732 0.22879 0.001739 0.24158 0.0018219 0.25409 0.0019049 0.26664 0.0019878 0.28011 0.0021536 0.29256 0.0023194 0.30504 0.0024023 0.31893 0.0024852 0.33214 0.002651 0.34475 0.002734 0.35839 0.0028998 0.37113 0.0029827 0.38486 0.0030656 0.39831 0.0032314 0.41135 0.0033972 0.4254 0.0034801 0.43788 0.0035631 0.4505 0.0037289 0.46312 0.0039776 0.47604 0.0041434 0.49004 0.0043922 0.50251 0.004558 0.51649 0.0048067 0.52891 0.0049725 0.54184 0.0051383 0.55482 0.0053871 0.56839 0.0055529 0.58227 0.0058016 0.59495 0.0058845 0.60756 0.0060504 0.62015 0.0062162 0.63345 0.006382 0.6459 0.0065478 0.65863 0.0067965 0.67103 0.0069624 0.68374 0.0071282 0.69634 0.007294 0.70899 0.0074598 0.72207 0.0077086 0.73512 0.0078744 0.74758 0.0080402 0.7602 0.0082889 0.77267 0.0084548 0.78561 0.0087035 0.79811 0.0088693 0.8105 0.0090351 0.82374 0.0092839 0.8384 0.0094497 0.84942 0.0096155 0.86198 0.0097813 0.87509 0.0099471 0.88756 0.010196 0.90027 0.010445 0.91399 0.010776 0.92656 0.011108 0.93905 0.01144 0.95275 0.011771 0.96531 0.011937 0.97788 0.012186 0.9903 0.012517 1.0036 0.012766 1.0165 0.013015 1.0305 0.013264 1.0433 0.013512 1.0555 0.013678 1.0684 0.013844 1.0813 0.014093 1.0953 0.014341 1.1088 0.01459 1.1216 0.014922 1.1342 0.01517 1.1468 0.015419 1.1598 0.015751 1.173 0.016 1.1855 0.016248 1.1981 0.016497 1.2109 0.016746 1.2234 0.016994 1.2359 0.017243 1.2485 0.017492 1.2617 0.017824 1.274 0.017989 1.2879 0.018321 1.3008 0.01857 1.3133 0.018819 1.3258 0.019067 1.3396 0.019482 1.3521 0.019731 1.3658 0.019979 1.3666 0.02 1.3666 0.02 1.3552 0.019565 1.339 0.018819 1.3232 0.018238 1.3075 0.017575 1.2925 0.016912 1.2767 0.016414 1.2613 0.015917 1.246 0.015502 1.229 0.014922 1.2135 0.014507 1.1983 0.014093 1.1821 0.013678 1.1652 0.013264 1.1498 0.012766 1.1347 0.012352 1.1188 0.01202 1.104 0.011688 1.0885 0.011274 1.0741 0.011025 1.0578 0.010528 1.0427 0.010279 1.0268 0.0099471 1.0114 0.0096984 0.99667 0.0095326 0.98037 0.0093668 0.96489 0.0092009 0.94951 0.0089522 0.93408 0.0087035 0.9179 0.0083718 0.90306 0.0081231 0.88779 0.0078744 0.87323 0.0076257 0.85827 0.007294 0.84307 0.0069624 0.82848 0.0067965 0.81305 0.0064649 0.79407 0.0062991 0.77941 0.0060504 0.76295 0.0058016 0.74784 0.0056358 0.73284 0.0053871 0.71758 0.0052213 0.70286 0.0050554 0.68754 0.0048067 0.6729 0.0046409 0.65766 0.0043922 0.64156 0.0042263 0.6267 0.0040605 0.60995 0.0038118 0.59348 0.003646 0.5787 0.0034801 0.56359 0.0033143 0.54859 0.0032314 0.53363 0.0031485 0.5172 0.0030656 0.50246 0.0029827 0.48709 0.002734 0.47233 0.002734 0.45621 0.0025681 0.43977 0.0023194 0.42419 0.0022365 0.40925 0.0020707 0.39363 0.0018219 0.37884 0.001739 0.36264 0.0016561 0.34707 0.0015732 0.33261 0.0014903 0.31731 0.0012416 0.30263 0.0012416 0.28706 0.0010757 0.27238 0.00099284 0.25739 0.00074411 0.24221 0.0006612 0.22727 0.0006612 0.21208 0.00057829 0.19603 0.00049538 0.18087 0.00032956 0.16519 0.00032956 0.14897 0.00024665 0.13399 0.00016374 0.11886 0.000080827 0.10411 0 0.088471 -0.0001679 0.072356 -0.0001679 0.057308 -0.00025081 0.041783 -0.0001679 0.026661 -0.00025081 0.011433 -0.000084993 -0.0036438 0
j'ai essayé d'utiliser Unique comme suit:
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73 1 0 -0,00500000000000000 4,10240000000000e-46 -6,43120000000000e-05 1 0 -0,0100000000000000 1,41160000000000e-44 -0,000268220000000000 1 0 -0,0150000000000000 6,50040000000000e-44 -0,000470110000000000 1 0 -0,0225000000000000 2,78960000000000e-43 -0,000850690000000000 1 0 -0,0337500000000000 1,33150000000000e-42 -0,00165250000000000 1 0 -0,0506250000000000 5,21070000000000e-42 -0,00291920000000000 1 0 -0,0759380000000000 2,21790000000000e-41 -0,00543820000000000 1 0 -0,107400000000000 7,96230000000000e-41 -0,00911770000000000 1 0 -0,138900000000000 2,11210000000000e-40 -0,0130590000000000 1 0 -0,170400000000000 4,91890000000000e-40 -0,0177750000000000 1 0 -0,206700000000000 1,03250000000000e-39 -0,0233150000000000 1 0 -0,243000000000000 1,97490000000000e-39 -0,0293920000000000 1 0 -0,279200000000000 3,47140000000000e-39 -0,0357090000000000 1 0 -0,315500000000000 5,73510000000000e-39 -0,0423730000000000 1 0 -0,351700000000000 8,96110000000000e-39 -0,0491640000000000 1 0 -0,388000000000000 1,35020000000000e-38 -0,0564060000000000 1 0 -0,424300000000000 1,94230000000000e-38 -0,0633870000000000 1 0 -0,460500000000000 2,74880000000000e-38 -0,0712120000000000 1 0 -0,496800000000000 3,75220000000000e-38 -0,0786040000000000 1 0 -0,533100000000000 5,04290000000000e-38 -0,0865630000000000 1 0 -0,569300000000000 6,63730000000000e-38 -0,0945370000000000 1 0 -0,613400000000000 8,73980000000000e-38 -0,104100000000000 1 0 -0,649200000000000 1,11770000000000e-37 -0,112500000000000 1 0 -0,685000000000000 1,40120000000000e-37 -0,120500000000000 1 0 -0,720800000000000 1,74230000000000e-37 -0,128900000000000 1 0 -0,756400000000000 2,14190000000000e-37 -0,137500000000000 1 0 -0,792100000000000 2,59490000000000e-37 -0,145600000000000 1 0 -0,827700000000000 3,13440000000000e-37 -0,154500000000000 1 0 -0,864700000000000 3,75640000000000e-37 -0,163600000000000 1 0 -0,901600000000000 4,45430000000000e-37 -0,172400000000000 1 0 -0,938600000000000 5,27940000000000e-37 -0,182100000000000 1 0 -0,982100000000000 6,25610000000000e-37 -0,193000000000000 1 0 -1,02600000000000 7,38320000000000e-37 -0,204300000000000 1 0 -1,06900000000000 8,67540000000000e-37 -0,215800000000000 1 0 -1,11300000000000 1,01180000000000e-36 -0,227000000000000 1 0 -1,15600000000000 1,17980000000000e-36 -0,239200000000000 1 0 -1,20000000000000 1,36440000000000e-36 -0,250800000000000 1 0 -1,24300000000000 1,57630000000000e-36 -0,263200000000000 1 0 -1,28700000000000 1,81150000000000e-36 -0,275400000000000 1 0 -1,33000000000000 2,07560000000000e-36 -0,288000000000000 1 0 -1,36700000000000 2,35150000000000e-36 -0,298700000000000 1 0 -1,36200000000000 2,50100000000000e-36 -0,293300000000000 1 0 -1,35700000000000 2,64000000000000e-36 -0,288100000000000 1 0 -1,35200000000000 2,76890000000000e-36 -0,282900000000000 1 0 -1,34200000000000 2,83080000000000e-36 -0,272500000000000 1 0 -1,32200000000000 2,75920000000000e-36 -0,252400000000000 1 0 -1,28200000000000 2,44940000000000e-36 -0,215200000000000 1 0 -1,23200000000000 2,02550000000000e-36 -0,172700000000000 1 0 -1,18200000000000 1,62420000000000e-36 -0,135500000000000 1 0 -1,13200000000000 1,25220000000000e-36 -0,102900000000000 1 0 -1,08200000000000 9,19040000000000e-37 -0,0747870000000000 1 0 -1,03200000000000 6,33240000000000e-37 -0,0512200000000000 1 0 -0,981600000000000 3,96780000000000e-37 -0,0319890000000000 1 0 -0,931600000000000 2,11970000000000e-37 -0,0170650000000000 1 0 -0,881600000000000 7,93050000000000e-38 -0,00638210000000000 1 0 -0,831600000000000 5,06570000000000e-39 -0,000407660000000000 1 0 -0,781600000000000 0 0 1 0 -0,731600000000000 0 0 1 0 -0,681600000000000 0 0 1 0 -0,631600000000000 0 0 1 0 -0,581600000000000 0 0 1 0 -0,531600000000000 0 0 1 0 -0,481600000000000 0 0 1 0 -0,431600000000000 0 0 1 0 -0,381600000000000 0 0 1 0 -0,331600000000000 0 0 1 0 -0,281600000000000 0 0 1 0 -0,231600000000000 0 0 1 0 -0,181600000000000 0 0 1 0 -0,131600000000000 0 0 1 0 -0,0816000000000000 0 0 1 0 -0,0316000000000000 0 0 1 0 0 0 0
mais voila la courbe qui me donne :
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2 [Xuniq,Iuniq]=unique(Uexp); Fint=interp1(Uexp(Iuniq),RFexp(Iuniq),-c(:,3),'linear');
je ne sait pas quoi faire
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