Why will this script not plot data in the figure? Is there a setting I'm missing? Every time I run the script, all I get is a completely blank (white) graph in the figure.

clear
clf
x=rand;
y=rand;
plot(x,y)

hold on
for it=1:10000
choic=round(rand*2);
if choic ==0
x=x/2;
y=y/2;
elseif choic == 1
x = (x+1)/2;
y=y/2;
else
x=(x+0.5)/2;
y=(y+1)/2;
end
plot(x,y)
hold on
end

[Jan]

We do not like such tests here. At first you ask a question and a user takes the time to answer it. But this forum is not a cheap do-it-4-me service, but we spend out spare time to make the solutions available for the community and everyone who is going to search for it. If you remove the question, the solution is not meaningful anymore and you have destroyed Greg's work. This is not respectful.

As Image Analyst has mentioned already, the most active users tend to ignore questions from persons, who remove questions.

[Greg]

If anybody is able to change his question back, the original question was a long-winded version of:

The following code keeps creating completely blank (entirely white background axes in a figure with no data) plots:

x = 1;
y = 5;
plot(x,y);

[John D'Errico]

Repaired as a question.

[Greg]

Thank you.

[Rena Berman]

(Answers Dev) Restored edit

Answer 1

[Greg]

The default behavior of plot does not include a marker. This means all you can see is the interpolated line connecting each PAIR of points. When you plot scalar x and y, there's no second point to draw a line to.

Try:

plot(x,y,'.');

To use a dot marker. Search documentation for other marker options if you don't like the dot.