作业帮求解一道matlab curve fitting的题目,求解一道matlab curve fitting的题目变了X与Y之间的关系是Y=a*X-a*x^2采集到的数据是 X = [0.028 0.049 0.209 0.324 0.421 0.536 0.613 0.716 0.813 0.897 0.922]; Y = [0.055 0.069 0.569 1.234 1.3
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![求解一道matlab curve fitting的题目,求解一道matlab curve fitting的题目变了X与Y之间的关系是Y=a*X-a*x^2采集到的数据是 X = [0.028 0.049 0.209 0.324 0.421 0.536 0.613 0.716 0.813 0.897 0.922]; Y = [0.055 0.069 0.569 1.234 1.3](/uploads/image/z/15072294-30-4.jpg?t=%E6%B1%82%E8%A7%A3%E4%B8%80%E9%81%93matlab+curve+fitting%E7%9A%84%E9%A2%98%E7%9B%AE%2C%E6%B1%82%E8%A7%A3%E4%B8%80%E9%81%93matlab+curve+fitting%E7%9A%84%E9%A2%98%E7%9B%AE%E5%8F%98%E4%BA%86X%E4%B8%8EY%E4%B9%8B%E9%97%B4%E7%9A%84%E5%85%B3%E7%B3%BB%E6%98%AFY%3Da%2AX-a%2Ax%5E2%E9%87%87%E9%9B%86%E5%88%B0%E7%9A%84%E6%95%B0%E6%8D%AE%E6%98%AF+X+%3D+%5B0.028+0.049+0.209+0.324+0.421+0.536+0.613+0.716+0.813+0.897+0.922%5D%3B+Y+%3D+%5B0.055+0.069+0.569+1.234+1.3)
求解一道matlab curve fitting的题目,求解一道matlab curve fitting的题目变了X与Y之间的关系是Y=a*X-a*x^2采集到的数据是 X = [0.028 0.049 0.209 0.324 0.421 0.536 0.613 0.716 0.813 0.897 0.922]; Y = [0.055 0.069 0.569 1.234 1.3
求解一道matlab curve fitting的题目,
求解一道matlab curve fitting的题目变了X与Y之间的关系是Y=a*X-a*x^2采集到的数据是 X = [0.028 0.049 0.209 0.324 0.421 0.536 0.613 0.716 0.813 0.897 0.922]; Y = [0.055 0.069 0.569 1.234 1.324 1.567 1.421 1.650 1.581 0.770 0.610];用MATLAB求a值,并且画出X和Y 的图像
求解一道matlab curve fitting的题目,求解一道matlab curve fitting的题目变了X与Y之间的关系是Y=a*X-a*x^2采集到的数据是 X = [0.028 0.049 0.209 0.324 0.421 0.536 0.613 0.716 0.813 0.897 0.922]; Y = [0.055 0.069 0.569 1.234 1.3
cftool拟合工具箱
命令行窗口里输入X = [0.028 0.049 0.209 0.324 0.421 0.536 0.613 0.716 0.813 0.897 0.922]; Y = [0.055 0.069 0.569 1.234 1.324 1.567 1.421 1.650 1.581 0.770 0.610];
左上角的参数里进行设置：X data选择变量X,Y data选择变量Y；
拟合类型选择Custom Equation,然后Y=f(X)=a*X-a*X^2
结果为
General model:
f(X) = a*X-a*(X^2)
Coefficients (with 95% confidence bounds):
a = 6.317 (5.133, 7.501) %这个就是你要求的值
Goodness of fit:
SSE: 0.9431
R-square: 0.7356
Adjusted R-square: 0.7356
RMSE: 0.3071