MATLAB POLYSPACE 7 Guide d'installation télécharger pdf (Page 188)

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3 Running Functions — Command Window and History

MATLAB provides other options for viewing a history of statements. See

also the following sections:

• “Recalling Previous Lines” on page 3-19, which describes using the up

arrow in the Command Window

• The

diary function reference page

• “Startup Options” on page 1-12, w hich includes the

logfile startup option

Viewing Statements in the Command Histor y

Window

The Command History window lists statements you ran in the current session

and in previous sessions. The time a nd date for each session appear at the top

of the history of statements fo r that s e ssion. Use the scroll bar or the up and

down arrow keys to move through the Command History window.

Click - to hide the history for a session, and cl ick + to show it. Select a

timestamp to select all entries for that session. With a timestamp selected,

you can press the + or - key on the numeric keypad to show and hide entries.

The Command History window and the Command Window’s statement recall

featuresavetothefile

history.m, which is stored in the same directory as

MATLAB preferences. Type

prefdir in the Command Window to see the

location of the file. The

history.m file is loaded when MATLAB starts, and

it stores a maximum of 20,000 bytes, deleting the oldest entries as n eeded

to maintain that size.

MATLAB automatically s aves the

history.m file throughout the s ession

according to the Saving preference you specified. You can choose to

automatically exclude certain statements from being written to the

history.m

file with the Settings preference. For details, see “Preferences for Command

History” on page 3-59.

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MATLAB POLYSPACE 7 Guide d'installation Page 188

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