trying to connect points from a matrix on a plot

is there a way to connect each point to each other? my script collects points from the txt file provided this is how my plot looks at the moment:

clear;
clc;
close all;
filename = input('Please provide the name of the input file:','s');
fid = fopen(filename,'r');
temp = fscanf(fid,'%f',4);
j = temp(1);
m = temp(2);
r = temp(3);
nload = temp(4);

%sanity check
if 2*j ~= (m+r)
    fclose(fid);
    error('This program can only solve determinate truss ');
end

temp = fscanf(fid,'%f %f',[2 j]);
XY = temp';
fclose(fid);
plotmatrix(XY(:,1),XY(:,2))

Answer 1

[Cris LaPierre]

The documentation might help here:

plotmatrix creates a scatter plot (markers only, no line).

Use plot instead to connect the points with a line.