跪求检查matlab程序中的错误year=[2010,2011,2012,2013];price=[1.100813304,1.095908915,1.026501145,1.010721331];year1=2010:2014;year2=2014;[p2,s2]=polyfit(year,price,2);price1=polyval(p2,year1);price2=polyval(p2,year2);plot(year,price,'*',year

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跪求检查matlab程序中的错误year=[2010,2011,2012,2013];price=[1.100813304,1.095908915,1.026501145,1.010721331];year1=2010:2014;year2=2014;[p2,s2]=polyfit(year,price,2);price1=polyval(p2,year1);price2=polyval(p2,year2);plot(year,price,'*',year

跪求检查matlab程序中的错误year=[2010,2011,2012,2013];price=[1.100813304,1.095908915,1.026501145,1.010721331];year1=2010:2014;year2=2014;[p2,s2]=polyfit(year,price,2);price1=polyval(p2,year1);price2=polyval(p2,year2);plot(year,price,'*',year
跪求检查matlab程序中的错误
year=[2010,2011,2012,2013];
price=[1.100813304,1.095908915,1.026501145,1.010721331];
year1=2010:2014;
year2=2014;
[p2,s2]=polyfit(year,price,2);
price1=polyval(p2,year1);
price2=polyval(p2,year2);
plot(year,price,'*',year2,price2,'X',year1,price1);

跪求检查matlab程序中的错误year=[2010,2011,2012,2013];price=[1.100813304,1.095908915,1.026501145,1.010721331];year1=2010:2014;year2=2014;[p2,s2]=polyfit(year,price,2);price1=polyval(p2,year1);price2=polyval(p2,year2);plot(year,price,'*',year

year=[2010,2011,2012,2013];

price=[1.100813304,1.095908915,1.026501145,1.010721331];

year1=2010:2014;

year2=2014;

[p2,s2]=polyfit(year,price,2);

price1=polyval(p2,year1);

price2=polyval(p2,year2);

plot(year,price,'*',year2,price2,'X',year1,price1);

没错呀,只不过是你的数据点太少,有警告,拟合的不是太好.