Can one get fitted value without going to predict?

1 Ansicht (letzte 30 Tage)
alpedhuez
alpedhuez am 29 Jul. 2021
Kommentiert: alpedhuez am 30 Jul. 2021
I have a regression
mdl=fitlm(X,Y)
How can one obtain the fitted value of the regression without going for predict?
  1 Kommentar
Scott MacKenzie
Scott MacKenzie am 30 Jul. 2021
I had posted an answer but then read Jeff's answer, posted a few hours after mine. As Jeff is "guessing" so was I.
@alpedhuez, if Jeff's answer is what you are looking for, that's great. Please accept his answer.
If it's not what you are looking for, then please explain what you want. Explain what you mean by "fitted value" (why singular? coefficients? predictions? just one prediction? closeness of fit? etc.) and "without going for predict".

Melden Sie sich an, um zu kommentieren.

Akzeptierte Antwort

Jeff Miller
Jeff Miller am 30 Jul. 2021
From your reference to 'predict', I'm guessing you have a vector of observed x values and you want to compute the predicted y for those x's. If so, then you want something like this:
xwithintercept = [1 x]; % maybe x' depending on row vs column vector
predictedY = sum( xwithintercept .* mdl.Coeffificent.Estimate)
  1 Kommentar
alpedhuez
alpedhuez am 30 Jul. 2021
I had hoped that
fitlm
had saved the value so that one can just reference it.

Melden Sie sich an, um zu kommentieren.

Weitere Antworten (0)

Tags

Produkte

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by