Martix is getting updated with the value of e,Without adding a new column, Please help me.

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persistent eWithDeltaL;
eWithDeltaL = [];
eWithDeltaL(end+1) = e;

Accepted Answer

Walter Roberson
Walter Roberson on 2 Jun 2016
You are overwriting eWithDeltaL with [] every time. You should have the assignment of [] to the variable only when you know that you want to reset the variable.
  2 Comments
Walter Roberson
Walter Roberson on 2 Jun 2016
When you declare a variable as persistent, it is automatically assigned [] if it does not already exist. You do not need to initialize it to [] unless you want to reset it.

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