Plot function adding line from last point in row to origin

Hello,

I currently have a plot that looks like this:

and I am trying to remove the line that is connecting the last node in the row to the origin. I know this question has been asked before but I was unable to use the answers to solve my problem. I tried sorting the data and tried stating LineStyle to none but it didn't work. Here is what I have so far:

plot(transpose(x_nudged),transpose(y_nudged),'-')
x_nudged(x_nudged==0)=nan;
y_nudged(y_nudged==0)=nan;

[Walter Roberson]

Remember that changing your data after you plot is not going to affect your plot.

Answer 1

[Walter Roberson]

In order to see that plot with multiple lines, your y_nudged must be 2D. The following code takes that into account.

xt = x_nudged.';
if isvector(xt)
    xt(end) = [];
else
    xt(end,:) = [];
end
yt = y_nudged.';
if isvector(yt)
    yt(end) = [];
else
    yt(end,:) = [];
end
plot(xt, yt);

[Radhika Kulkarni]

Thanks Walter, worked perfectly! One question however, in my old graph, I was able to cut off the x coordinates at 15. Thus, my boundary was at x = 0 and then x = 15. However, when I inputted your code, I am seeing boundary at x = 0 but not at 15. Is there a way to add this into the code?

For example, the last point on the x axis being plotted is 14.8 but it should extend to 15.

[Walter Roberson]

Can you attach your data as a .mat for testing?

[Radhika Kulkarni]

Sure, see attached. The matrices I am using are x_coor and y_adj.

[Radhika Kulkarni]

Hi Walter. I was wondering if you had any updates on the situation. I notcied that when I tranpose my matrix, it doesn't catch the last column. So my original matrix of 18x76 is getting transposed into 75x18.

[Walter Roberson]

That code does not join back to the origin the way you were describing earlier, so the deletion of points should not be done.

However, your maximum x alternates between 15.0 and 15.1 in odd and even columns, so it is not immediately clear whether you want your maximum plotted to be 15 or 15.1

[Radhika Kulkarni]

I want it to be 15.

[Walter Roberson]

xt = x_coor.';
yt = y_adj.';
plot(min(xt, 15), yt)