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豐國安邦金蟲 (小有名氣)
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[求助]
利用matlab進行分段擬合求一個常數(shù)a，拐點m，直線y=kx+b，數(shù)據(jù)如下
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x=[3.00221124 2.80819715 2.77570885 2.700689847 2.472327868 2.427454075 2.373975089 2.283402274 2.263844265 2.211565695 2.190535589 2.186051277 2.159868791 2.159868791 2.152924318 2.148267733 2.107786015 2.089391873 2.079441542 2.066862759 2.059238834 2.054123734 2.05284086 2.051556338 2.047692843 2.02287119 2.020222182 2.009555414 2.002830439 2.002830439 1.993338843 1.986503546 1.983756292 1.979621206 1.974081026 1.962907725 1.962907725 1.962907725 1.962907725 1.961502244 1.953027617 1.948763218 1.932969638 1.932969638 1.932969638 1.919859472 1.912501087 1.906575144 1.900613874 1.894616855 1.894616855 1.880990603 1.867176109 1.867176109 1.867176109 1.867176109 1.867176109 1.865629318 1.864080131 1.83736998 1.834180185 1.830980182 1.814824742 1.803358605 1.800058272 1.800058272 1.798404012 1.798404012 1.780024213 1.780024213 1.780024213 1.780024213 1.780024213 1.778336449 1.766441661 1.763017 1.757857918 1.743968805 1.743968805 1.728109442 1.728109442 1.726331664 1.726331664 1.726331664 1.726331664 1.726331664 1.710187816 1.70837786 1.706564623 1.706564623 1.706564623 1.706564623 1.688249093 1.688249093 1.688249093 1.688249093 1.688249093 1.688249093 1.680827909 1.648658626 1.638996715 1.62924054 1.611435915 1.609437912 1.60341984 1.595338988 1.595338988 1.591273942 1.589235205 1.589235205 1.589235205 1.589235205 1.589235205 1.589235205 1.589235205 1.587192303 1.58514522 1.568615918 1.568615918 1.566530411 1.560247668 1.560247668 1.558144618 1.553925203 1.545432582 1.54329811 1.523880024 1.523880024 1.521698998 1.521698998 1.521698998 1.521698998 1.512927012 1.506297154 1.501852702 1.477048724 1.477048724 1.477048724 1.456286733 1.451613827 1.435084525 1.427916036 1.427916036 1.425515074 1.40854497 1.40854497 1.383791231 1.371180723 1.358409158 1.358409158 1.353254507 1.332366019 1.327075001 1.327075001 1.324418957 1.280933845 1.272565596 1.272565596 1.272565596 1.272565596 1.252762968 1.252762968 1.232560261 1.226712291 1.223775432 1.214912744 1.214912744 1.196948189 1.193922468 1.184789985 1.153731588 1.153731588 1.153731588 1.153731588 1.134622726 1.134622726 1.134622726 1.134622726 1.088561953 1.088561953 1.088561953 1.068153081 1.068153081 1.043804052 1.01884732 1.01884732 1.00063188 1.00063188 1.00063188 0.928219303 0.891998039 0.867100488 0.850150929 0.850150929 0.850150929 0.722705983 0.693147181 0.672944473 0.587786665 0.570979547 ] y=[0 0.693147181 1.098612289 1.386294361 1.609437912 1.791759469 1.945910149 2.079441542 2.197224577 2.302585093 2.397895273 2.48490665 2.564949357 2.63905733 2.708050201 2.772588722 2.833213344 2.890371758 2.944438979 2.995732274 3.044522438 3.091042453 3.135494216 3.17805383 3.218875825 3.258096538 3.295836866 3.33220451 3.36729583 3.401197382 3.433987204 3.465735903 3.496507561 3.526360525 3.555348061 3.583518938 3.610917913 3.63758616 3.663561646 3.688879454 3.713572067 3.737669618 3.761200116 3.784189634 3.80666249 3.828641396 3.850147602 3.871201011 3.891820298 3.912023005 3.931825633 3.951243719 3.970291914 3.988984047 4.007333185 4.025351691 4.043051268 4.060443011 4.077537444 4.094344562 4.110873864 4.127134385 4.143134726 4.158883083 4.17438727 4.189654742 4.204692619 4.219507705 4.234106505 4.248495242 4.262679877 4.276666119 4.290459441 4.304065093 4.317488114 4.33073334 4.343805422 4.356708827 4.369447852 4.382026635 4.394449155 4.406719247 4.418840608 4.430816799 4.442651256 4.454347296 4.465908119 4.477336814 4.48863637 4.49980967 4.510859507 4.521788577 4.532599493 4.543294782 4.553876892 4.564348191 4.574710979 4.584967479 4.59511985 4.605170186 4.615120517 4.624972813 4.634728988 4.644390899 4.65396035 4.663439094 4.672828834 4.682131227 4.691347882 4.700480366 4.709530201 4.718498871 4.727387819 4.736198448 4.744932128 4.753590191 4.762173935 4.770684624 4.779123493 4.787491743 4.795790546 4.804021045 4.812184355 4.820281566 4.828313737 4.836281907 4.844187086 4.852030264 4.859812404 4.86753445 4.875197323 4.882801923 4.890349128 4.8978398 4.905274778 4.912654886 4.919980926 4.927253685 4.934473933 4.941642423 4.94875989 4.955827058 4.96284463 4.9698133 4.976733742 4.983606622 4.990432587 4.997212274 5.003946306 5.010635294 5.017279837 5.023880521 5.030437921 5.036952602 5.043425117 5.049856007 5.056245805 5.062595033 5.068904202 5.075173815 5.081404365 5.087596335 5.093750201 5.099866428 5.105945474 5.111987788 5.117993812 5.123963979 5.129898715 5.135798437 5.141663557 5.147494477 5.153291594 5.159055299 5.164785974 5.170483995 5.176149733 5.18178355 5.187385806 5.192956851 5.198497031 5.204006687 5.209486153 5.214935758 5.220355825 5.225746674 5.231108617 5.236441963 5.241747015 5.247024072 5.252273428 5.257495372 5.262690189 5.267858159 5.272999559 5.278114659 5.283203729 5.288267031 5.293304825 5.298317367 ] |
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leimiao_hit
木蟲之王 (文學(xué)泰斗)
小元
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- 蟲號: 1264338
- 注冊: 2011-04-13
- 專業(yè): 蔬菜學(xué)與瓜果學(xué)
2樓2011-09-11 00:01:25
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