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Clear Ram Space



name1 ... nameN — Names of variables, scripts, functions, or MEX functions to clear
character vectors | string scalars

Names of variables, scripts, functions, or MEX functions to clear, specified as one or more character vectors or string scalars.

Windows saves the contents of your RAM in the C: hiberfil.sys file. To save hard drive space, you can disable hibernate entirely, which removes the file. Disable System Restore – If reducing the amount of space System Restore uses isn’t good enough for you, you can disable System Restore entirely. The fastest and easiest way to clear up memory that’s being used is to make sure there are no system processes consuming all the system resources. This is an easy problem to develop over time, especially if you’re in the habit of installing a lot of software. There’s also a very easy solution. MemPlus will be wont to monitor the RAM usage on your device. You’ll clear the memory of any non-essential processes by clicking the “Clear memory” button that is visible within the main window. This can clear each the operating sets of processes and also the FileSystem cache, if enabled. You furthermore might have the power to clear the.

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If name is a:

  • Function, then clear reinitializes any persistent variables in the function. Specifying a local or nested function is not supported.

  • Script or function that is currently executing or a function locked by mlock, then clear does not remove it.

  • Global variable, then clear removes it from the current workspace, but it remains in the global workspace. To remove a global variable from all workspaces, use clear globalvariable.

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Use a partial path to distinguish between different overloaded versions of a function. For example, clear polynom/display clears only the display method for polynom objects, leaving any other implementations in memory.

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Space

expr1 ... exprN — Regular expressions matching names of variables to clear
character vectors | string scalars

Regular expressions matching names of variables to clear, specified as one or more character vectors or string scalars.

ItemType — Type of items to clear
all | classes | functions | global | import | java | mex | variables

Type of items to clear, specified as one of the following.

Value of ItemTypeItemsClearedNotes
Variables in scopeScripts and functionsClass definitionsPersistent variablesMEX functionsGlobal variablesImportlistJava classes on the dynamic path

all

✓✓✓✓✓From command prompt only

Calling clear all decreases code performance,and is usually unnecessary. For more information, see the Tips section.

classes

✓✓✓✓✓✓✓

Calling clear classes decreases codeperformance, and is usually unnecessary. For more information, seethe Tips section.

Toinstantiate an object with an updated class definition, it is notnecessary to call clear classes. When youmodify a class definition, MATLAB® updates it automatically. Formore information, see Automatic Updates for Modified Classes.

clearclasses issues a warning and does not clear a class of objectsif any of those objects still exists after the workspace is cleared.For example, objects can still exist in persistent variables of functionsor figure windows.

clear classes doesnot clear a class if its file is locked using the mlock command.No warning is issued in this case.

functions

✓✓ ✓

Calling clear functions decreasescode performance, and is usually unnecessary. For more information,see the Tips section.

global

✓

clear global removes all global variables in the current and global workspaces. For example, when called from a function, clear global removes all global variables in the function and global workspaces, but not in the base workspace.

import

✓

Call clear import only from the commandprompt. Calling clear import in a function or ascript returns an error.

java

✓✓✓✓✓✓

clear java issues a warning and doesnot remove the Java class definition if any of its Java objects existoutside the workspace (for example, in user data or persistent variablesin a locked code file).

Issue a clear java commandafter modifying any files on the dynamic Java path.

mex

✓

clear mex does not clear locked MEXfunctions or functions that are currently in use.

variables

✓
Space

Note

If the name of a variable is a value of ItemType,then calling clear followed by that name deletesthe variable with that name. clear does not interpretthe name as a keyword in this context. For example, if the workspacecontains variables a, all, b,and ball, clear all removesthe variable all only.