matlab 获取拟合系数,matlab离散型数据拟合方程,求系数,哪个大神能说说方法...
发布日期:2021-06-24 13:08:21 浏览次数:2 分类:技术文章

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已知

to=[0,1,2,3,4,5,6,7,8,9,10];

tc=[25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55];

to为1行11列的矩阵,te为31行1列的矩阵,

现y=[te_m,to_n],(m为te的列标号,n为to的行标号) y=

[301.3,296.3,291.0,285.5,279.6,273.4,266.8,259.8,252.4,244.4,236.0

308.1,303.4,298.4,293.1,287.5,281.6,275.4,268.7,261.7,254.3,246.3

314.7,310.1,305.4,300.3,295.0,289.4,283.5,277.3,270.6,263.6,256.1

321.0,316.7,312.1,307.3,302.3,296.9,291.3,285.4,279.1,272.4,265.4

327.0,322.9,318.6,314.0,309.2,304.1,298.8,293.1,287.2,280.9,274.2

332.9,329.0,324.8,320.5,315.9,311.0,305.9,300.6,294.9,288.9,282.6

338.5,334.7,330.8,326.6,322.3,317.7,312.8,307.7,302.3,296.6,290.6

343.9,340.3,336.6,332.6,328.4,324.0,319.4,314.5,309.4,303.9,298.2

349.1,345.7,342.1,338.3,334.3,330.1,325.7,321.0,316.1,311.0,305.5

354.1,350.8,347.4,343.8,340.0,336.0,331.7,327.3,322.6,317.7,312.5

358.9,355.8,352.5,349.0,345.4,341.6,337.5,333.3,328.8,324.1,319.2

363.5,360.5,357.4,354.1,350.6,347.0,343.1,339.1,334.8,330.3,325.6

368.0,365.1,362.1,358.9,355.6,352.1,348.4,344.6,340.5,336.2,331.7

372.2,369.5,366.6,363.6,360.4,357.1,353.6,349.9,346.0,341.9,337.6

376.3,373.7,370.9,368.1,365.0,361.8,358.5,354.9,351.2,347.3,343.2

380.2,377.7,375.1,372.3,369.4,366.4,363.1,359.8,356.2,352.5,348.5

383.9,381.5,379.0,376.4,373.6,370.7,367.6,364.4,361.0,357.4,353.7

387.4,385.2,382.8,380.3,377.6,374.8,371.9,368.8,365.6,362.1,358.5

390.8,388.6,386.4,384.0,381.5,378.8,376.0,373.0,369.9,366.7,363.2

394.0,391.9,389.8,387.5,385.1,382.5,379.9,377.0,374.1,371.0,367.7

397.0,395.1,393.0,390.8,388.5,386.1,383.6,380.9,378.0,375.0,371.9

399.9,398.0,396.1,394.0,391.8,389.5,387.1,384.5,381.8,378.9,375.9

402.6,400.8,399.0,397.0,394.9,392.7,390.4,387.9,385.3,382.6,379.8

405.1,403.5,401.7,399.8,397.8,395.7,393.5,391.2,388.7,386.1,383.4

407.5,405.9,404.2,402.5,400.6,398.6,396.5,394.2,391.9,389.4,386.8

409.7,408.2,406.6,404.9,403.2,401.3,399.2,397.1,394.9,392.5,390.0

411.7,410.3,408.8,407.2,405.5,403.7,401.8,399.8,397.7,395.4,393.0

413.6,412.3,410.9,409.4,407.8,406.1,404.2,402.3,400.3,398.1,395.9

415.3,414.1,412.7,411.3,409.8,408.2,406.5,404.6,402.7,400.7,398.5

416.8,415.7,414.4,413.1,411.7,410.1,408.5,406.8,405.0,403.0,400.9

418.2,417.1,416.0,414.7,413.4,411.9,410.4,408.7,407.0,405.2,403.2];

怎样用matlab拟合出形如

y = c1 + c2*to + c3*tc + c4*to^2 + c5*to*tc + c6*tc^2 + c7*to^3 + c8*tc*to^2 + c9*to*tc^2 + c10*tc^3的公式,即计算出此10项式的系数[c1,c2,c3,c4,c5,c6,c7,c8,c9,c10]

哪一个大神能给一下方法啊?跪求

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