how to put title in graph

I would like to put title in each graph with original file names. However, when I try it, error message was given "You cannot subscript a table using linear indexing (one subscript) or multidimensional indexing (three or more subscripts). Use a row subscript and a variable subscript."

I could not find the solution. Could you help me?

I put core code for this question.

filelists = dir('*.txt'); 
file = length(filelists);
title = struct2table(filelists);
title_2 = title{:,1};
title_S = erase(title_2,".txt");

for i= 1:file 
title_ind{i} = title_S{i};

h=figure;
plot(f2{i},xf{i},yf{i})
hold on
title(title_ind{i})
hold off
end

Answer 1

[Walter Roberson]

You assigned

title = struct2table(filelists);

That creates a variable name title, which makes it difficult to use the function named title()

Do not use title as the name of a variable.

[jaekeun lim]

thank you so much!