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clear;clc; x1 = [1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7]; y1 = [0.41 0.416 0.446 0.473 0.5 0.524 0.547 0.57 0.589 0.612 0.627 0.648]; x1= linspace( 0, 7, 100) ; p1= polyfit ( x1 , y1, 4); z1= polyval( p1, x1) ; plot( x, y1, 'ob', x1, z1, 'b') , hold on; ÒÔÉÏÊý¾Ý½øÐÐÄâºÏʱ³öÏÖÏÂÃæ´í£¬Çë¸÷λ°ïÎÒ¿´¿´£¬ÎÒ¶Ômatlab»ù±¾ÉÏÊÇС°×£¬²Å¿´µÃ£¬Ð»Ð»¸øÎ»´ó¸ç´ó½ãÁË:handshake ??? Error using ==> polyfit X and Y vectors must be the same size. |
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