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How do I set all variables as zero or null?

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AbdullahMZ
AbdullahMZ el 9 de Nov. de 2019
Respondida: Walter Roberson el 9 de Nov. de 2019
Hi everyone,
I am trying to find a way to begin my script by setting all the variables as zero, and then the script will start changing the variables as I go along?
any way I can do that? any function like the Python function :
Fillna(0,inplace=True);
Thank you
  2 comentarios
per isakson
per isakson el 9 de Nov. de 2019
Editada: per isakson el 9 de Nov. de 2019
Yes
x = zeros( number_of_rows, number_of_columns );
or (imo better)
x = nan( number_of_rows, number_of_columns );
AbdullahMZ
AbdullahMZ el 9 de Nov. de 2019
this function will only pre-define variable x, I want to pre-define all the variables

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Walter Roberson
Walter Roberson el 9 de Nov. de 2019
No, there is no way to tell MATLAB that all variables it encounters should be considered to be initialized to zero.
There are ways to list off a number of variables by name and tell MATLAB to initialize them all to zero, but those ways are not recommended
In python, fillna() is a method for Pandas dataframes that changes nan values into other values. The MATLAB equivalent is fillmissing() . However, that has nothing to do with setting all variables to zero at the beginning.

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