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Clear variable from Memory in MATLAB

  • Last Updated : 04 Jul, 2021

Clearing variables from memory, with the help of clearvars operation. The clearvars operation is used to clear the specified variables from memory or from the currently active workspace.

Syntax:

clearvars variables
clearvars -except keepVariables

Parameters: This function accepts a parameter.

  • variables: These are the specified variables that are going to be cleared.

Example 1  

Matlab




% MATLAB code for variables "x" and "y"  
% cleared from the memory and variable "z" 
% will be as it is.
x = 5; % Initializing 
y = 10;
z = 15;
  
% Calling the clearvars operation over
% the x and y variables 
clearvars x y
  
% Getting the remaining variables 
whos

Output:



Example 2 

Matlab




% MATLAB code for all variables will be 
% cleared except "C" and "D".
A = 5;  % Initializing of variables
B = 10;
C = 15;
D = 20;
E = 25;
  
% Calling the clearvars operation to
% clear above variables except C and D
clearvars -except C D
  
% Getting the remaining variables 
whos

Output:

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