|Programming and Data Types|
Characteristics of persistent variables are
clearthe function or edit the M-file for that function, then MATLAB clears all persistent variables used in that function.
You must declare persistent variables as
persistent before you can use them in a function. It is usually best to put persistent declarations toward the beginning of the function. You wouldl declare persistent variable
SUM_X as follows:
You can use the
mlock function to keep an M-file from being cleared from memory, thus keeping persistent variables in the M-file from being cleared as well.
|Global Variables||Special Values|