matlab graphing
 

I am writing a code to plot a graph of everystep i've taken throughout the code. Right now it is only plotting one or two points.

clc
echo off
clear all


atHome = 0;

stepsToTry = 5000;

x = 0;
y = 0;
dx = 0;
dy = 0;
disp('Will Waldo make it home?')
disp(' ')
disp(' ')
i = 0;

while ( i <= stepsToTry & atHome == 0)
angle = 2*pi*rand();
dx = cos(angle);
dy = sin(angle);
while (x + dx < -10 | x + dx > 10 | y + dy < -10 | y + dy > 10)
angle = 2*pi*rand();
dx = cos(angle);
dy = sin(angle);
end

x = x+dx;
y = y+dy;

if ( (x>=8) & (x<=10) & (y>=8) & (y<=10) )
atHome = 1;
end
i = i + 1;
end

if (atHome==1)
disp('Waldo made it home in this many steps')
disp(i)
disp(' ')
disp(' ')
else
disp('Waldo is still lost after taking this many steps')
disp(stepsToTry)
disp(' ')
disp(' ')
disp('Please play again and try to get Waldo home!')
disp(' ')
disp(' ')
end
hold on
plot(x,y,'b')
xlabel('x-axis')
ylabel('y-axis')
title('\fontsize{20}Waldo''s Path Home')
hold off

Thanks in advance for any help that you can give.

if i understand your question you want to graph multiple plots in your m-file. try:

_____________________

else if it is doing 1 or 2 traverses thru the while then 'atHome' is being arbitrarily set to 1.

hth

Your plotting code:

It looks like x and y are scalar variables, so this will only plot one point. I assume you want to plot a trail of these points?

Have you tried removing "hold off"? Each plot command after "hold off" will automatically clear the plot.

Hope this helps.

x isnt accumulating so either make it a vector or move the code butters posted inside the while.

also using code tags will make your code easier to read.

try putting 'why' before your end the while

thanks
 

thanks for the help everyone i got ut to work.