Plot several lines (looping through line styles in cell array) in Matlab

Question

I have written this loop to plot each line of results and I get the error message

Error using plot. Invalid first data argument.

So

Answer 1

You should write:

plot(xint,test(ii,:),...
        LineSpec{ii},...
        'linewidth',2);

LineSpec is a cell array, so LineSpec(ii) returns a cell, while plot asks for a character array as line properties.

you can see the difference when you call LineSpec:

>> LineSpec{1}
ans =
-y
>> LineSpec(1)
ans = 
    '-y'

When the output is a cell then the answer is indented and has the single-quote marks.