fitlm - only positive coefficients

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Tobias Grempels 2022-10-24

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评论： Torsten 2022-10-24

I made a linear regression Model with fitlm. Some of the calculated coefficients are negative. In my Project this doesnt make sense. Is there an opportunity to set Boundaries for the coefficients or only allow positive ones?

Thank you!

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Torsten 2022-10-24

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Use "lsqlin" instead. Here, you can set upper and lower bounds for the parameters.

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Tobias Grempels 2022-10-24

Here i need some help. How can i use lsqlin for optimizing my r-squared?

Torsten 2022-10-24

The r-squared is only optimized in the model with no bounds on the regression coefficients.

You can compute the r-squared after fitting with lsqlin and with the bound constraints on the parameters, but it will of course be smaller than the optimal one.

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