Can anyone help me in this code? Only the first radius value is being taken everytime, its not getting incremented..... what change i have to do?

load data

theta=data(:,1);
radius=data(:,2);

t=length(radius);

for i=1:1:t;
    %rho = radius(i)*ones(size(theta)) ;
    rho(i)=radius(i);
    %theta=theta(i);
end

for i=1:1:t;
    rho = rho(i)*ones(size(theta)) ;
    polar(theta,rho,'*')
end

[KSSV]

Why two loops? What plot you are expecting g?

[L K]

in the first loop am just saving the radius values in variable , to see if the are getting incremented.

second loop i used to plot them.

i have attached the figure, all the points are getting plotted with radius 5 only,

i want every angle to be plotted to its corresponding value in the sheet.

Answer 1

[Walter Roberson]

You need

hold on

Inside the loop

[L K]

its not working for me

[Walter Roberson]

for i=1:1:t;
    polar(theta(i), rho(i), '*')
    hold on
end

Or just replace the loop with

polar(theta, rho, '*')

[L K]

Is this what you are saying ?

load data

theta=data(:,1); radius=data(:,2);

t=length(radius);

for i=1:1:t; %rho = radius(i)*ones(size(theta)) ; rho(i)=radius(i); %theta=theta(i);

end

for i=1:1:t; polar(theta(i), rho(i), '*') hold on end

Only 3 values are plotted

[Walter Roberson]

load data
theta = data(:,1);
radius = data(:,2);
rho = radius          %just for display, not needed for computing

polar(theta, radius, '*')

[L K]

Thank you so much!!