LinearRegression`
LinearRegression`
DesignMatrix
As of Version 7.0, DesignMatrix is part of the built-in Wolfram Language kernel.
DesignMatrix[data,funs,vars]
gives the design matrix for data as a linear combination of the functions funs of the variables vars.
更多信息和选项
- To use DesignMatrix, you first need to load the Linear Regression Package using Needs["LinearRegression`"].
- The i
row of a design matrix contains the values of the basis functions funs evaluated at the values for the i
element in data. - The data can have the form {{x1,y1,…,f1},{x2,y2,…,f2},…}, where the number of coordinates x, y, … is equal to the number of variables in the list vars.
- The data can also be of the form {f1,f2,…}, with a single coordinate assumed to take values 1,2,….
- The argument funs can be any list of functions that depend only on the variables vars.
- The following option can be given:
-
IncludeConstant True whether to automatically include a constant as one of the functions - With the default setting IncludeConstant->True, the constant 1 is included as the first entry in the list of basis functions if a constant is not included in funs.
范例
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Wolfram Research (2007)，DesignMatrix，Wolfram 语言函数，https://reference.wolfram.com/language/LinearRegression/ref/DesignMatrix.html.
文本
Wolfram Research (2007)，DesignMatrix，Wolfram 语言函数，https://reference.wolfram.com/language/LinearRegression/ref/DesignMatrix.html.
CMS
Wolfram 语言. 2007. "DesignMatrix." Wolfram 语言与系统参考资料中心. Wolfram Research. https://reference.wolfram.com/language/LinearRegression/ref/DesignMatrix.html.
APA
Wolfram 语言. (2007). DesignMatrix. Wolfram 语言与系统参考资料中心. 追溯自 https://reference.wolfram.com/language/LinearRegression/ref/DesignMatrix.html 年