How to build x and y coordinates using a For loop

Hi. I want to plot a series of lines using x and y data extracted from a uitable. But I am having some error regarding the dimension of x and y. Here is the code:

x1=zeros(12,1);
x2=zeros(12,1);
y1=zeros(12,1);
y2=zeros(12,1);
x=zeros(12,2);
y=zeros(12,1);
for i=1:12
    x1(i)=str2double(data(i,4));
    x2(i)=str2double(data(i,4));
    y1(i)=str2double(data(i,2));
    y2(i)=str2double(data(i,3));
    x(i)=[x1(i),x2(i)];
   y(i)=[y1(i),y2(i)];
l=plot(handles.axes4,x(i),y(i));
axis(handles.axes4,'ij');
end

The error is the following:

In an assignment  A(I) = B, the number of elements in B and I must be the same.

Error in Loading_Well_logs>pushbutton6_Callback (line 1898)
    x(i)=[x1(i),x2(i)];

Error in gui_mainfcn (line 95)
        feval(varargin{:});

Error in Loading_Well_logs (line 42)
    gui_mainfcn(gui_State, varargin{:});

Error in @(hObject,eventdata)Loading_Well_logs('pushbutton6_Callback',hObject,eventdata,guidata(hObject))

 
Error while evaluating UIControl Callback

Could somebody tell me what I am doing wrong?

Answer 1

[Fangjun Jiang]

maybe it should be

y=zeros(12,2)

x(i,:)=[x1(i),x2(i)];
y(i,:)=[y1(i),y2(i)];

[leydy Garcia]

Thanks! it works!