[Using saved variables] Unable to use saved variables in my functions. Could be a problemo fo Global/local Variables.

I have imported my data in matrix form naming this variable as "p". I have then saved it as p.mat and at the beginning of each session I recall it in my workspace. I would like to use it inside my functions but as soon as i run my function codes i get that "p" is an undefined variable. I think it is a problem of local and global variable. I tried to set p as global variable in order to pass it into my function codes but without success. (I have written on the command window "global p" but I do not think it is that easy). The description of global (help global) does not provide any interesting answer.

Now my codes are working because in each function I use "myimport" which is a script that creates p everytime.

[Stephen23]

The MATLAB documentation explains how to pass data between workspaces:

https://www.mathworks.com/help/matlab/matlab_prog/share-data-between-workspaces.html

Note that the documentation clearly states Best Practice: Passing Arguments. Using globals is a bad practice because it makes buggy code that is almost impossible to debug:

http://blogs.mathworks.com/videos/2010/03/08/top-10-matlab-code-practices-that-make-me-cry/

http://matlab.wikia.com/wiki/FAQ#Are_global_variables_bad.3F

Answer 1

[Walter Roberson]

http://matlab.wikia.com/wiki/FAQ#How_can_I_share_data_between_callback_functions_in_my_GUI.28s.29.3F