Update Class without restarting matlab

Hello Matlabers

I am working on a GUI and have implemented some of my own classes (all stored in @classname folder with subfunctions in there too - as told on the mathworks website).

When I need to do some changes to methods/functions in my classes, they somehow do not get updated after saving. When I restart my gui (where tha objects are created) I still get the old implementations.

I always close all the windows/guis and do "close all" but this does not seem to work - even "pack" has no influence.

Thus I found that in order to have an updated class I need to restart my Matlab and then things work perfectly.

There has to be a more convenient way, hasn't it?

Answer 1

[Robert Cumming]

This is because Matlab does a certain amount of cacheing of classes in memory - as indicated by Walter the way to update is to use

clear classes

[Jonas Reber]

I usually go with "clear all" - doesn't this include clear classes too?

[Robert Cumming]

No it doesn't. from the matlab help:

CLEAR CLASSES is the same as CLEAR ALL except that class definitions are also cleared

[Jonas Reber]

perfect, thank you!

[Vasco]

Is there a way to only reload a specific class?

When developing code, I quite often only change one class. Reloading all classes (and rereading data) takes significant time.

Answer 2

[Walter Roberson]

Have you tried using "clear" of the class? Have you tried using "rehash", perhaps even "rehash toolboxcache" ?

[Peter Manley-Cooke]

As in the command "clear classes". You will then need to re-instantiate you classes. I do it by restarting the GUI.