matlab拟合y=Ax^(2/3)+x+B - 未名空间MITBBS历史存档

国际科技财经博客移民网络热点娱乐民生时事公众号

Redian新闻

>未名空间

>Computation - 科学计算

matlab拟合y=Ax^(2/3)+x+B

matlab拟合y=Ax^(2/3)+x+B# Computation - 科学计算

ET2005-02-10 08:02

1 楼

is matlab able to the job? fitting y=Ax^(2/3）+x+B with the given data(x,y)
which function should be used?
appreciate the possible advice.

l*i2005-02-10 08:02

2 楼

do a simple transformation yah, you get a column of x and the same size
column of y, then you can easily get a column of y-x and a column of x^(
2/3). The rest is just a linear regression.

【在 ET 的大作中提到】

: is matlab able to the job? fitting y=Ax^(2/3）+x+B with the given data(x,y)
: which function should be used?
: appreciate the possible advice.

r*p2005-02-10 08:02

3 楼

type cftool in the command window. use custimised formula to fit data.

data(x,y)

【在 l*****i 的大作中提到】

: do a simple transformation yah, you get a column of x and the same size
: column of y, then you can easily get a column of y-x and a column of x^(
: 2/3). The rest is just a linear regression.