I assume that you are trying to run the script "GenerateParameterDataForDatasheetBatteryBlockExample.m" by using the command:
Now in this example: "current" is a 1 by 11 vector and ref_exp is 2, so the line:
ref_curr = current == current(ref_exp);
simply means that ref_curr is a 1 by 11 logical vector defined as:
ref_curr(idx) is 1 if and only if current(idx) is equal to the value current(ref_exp)
else, ref_curr(idx) is 0, where 1 <= idx <= 11.
Now, for the second part of your question: I did not encounter any errors while running the sections progressively. Could you share the error you encountered?