why gradient and diff return many values?

2 visualizzazioni (ultimi 30 giorni)
huda nawaf
huda nawaf il 7 Mar 2021
Commentato: huda nawaf il 7 Mar 2021
hello,
I need use the derivatives for example in loss function is J(w,b) such that find
w=w-α * (∂J/ ∂w)
when I used diff or gradient I have many values, In fact I need only one value represent (∂J/ ∂w).
Please, can one help me to provide me with that command.
Thanks in advance
  4 Commenti
dpb
dpb il 7 Mar 2021
How well it would work or even be reasonable would be entirely dependent upon the problem characteristics but one could try mean(gradient()) to get an average to reduce a vector to one value.
huda nawaf
huda nawaf il 7 Mar 2021
@ Jan
In fact I just need compute the derivative, and I know when compute the derivative for one variable I shoud get one value.
that is mean I did not use the right command. I want to calculate the derivative for one variable respect to functionnd

Accedi per commentare.

Risposte (0)

Community Treasure Hunt

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

Start Hunting!

Translated by