MATLAB: Struct contents reference from a non-struct array object. for importing file

Question

lab4_plot_data.txt is 2×100 double

X=importdata('lab4_plot_data.txt')

x=X.data(1,:); y=X.data(2,:);

error message is "Struct contents reference from a non-struct array object. Error in lab4t2 (line 7) x=X.data(1,:); "

Answer 1

You forgot to attach lab4_plot_data.txt, but my guess is that X is just a regular 2-d array of numbers, so you'd do

x = X(1, :); % x is row 1 of the data
y = X(2, :); % y is row 2 of the data

Try that and attach lab4_plot_data.txt if it doesn't work.