Minimize difference between vectors by varying scalar
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Hello,
I'm trying to use fminsearch to find the scalar (a) that minimizes the difference between 2 vectors of dimension N, i.e. diff = abs(x - a*x_model).
The difference (diff) is a vector of dimensions 1xN and fminsearch outputs also a vector of dimensions 1xN, but I would like to just have a scalar value for a.
Also, should diff be normalized by the mean of x?
I hope my explanation is clear, thank you in advance.
1 件のコメント
Torsten
2022 年 5 月 18 日
You cannot minimize a vector (in your case diff = abs(x-a*x_model)). You can minimize the norm of a vector.
For diff = x-a*x_model, you must decide which norm to take.
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