How to set a loop in ode45

I am new to matlab and am facing a problem while solving a particular differential equation .

My functions is:

function xdot = test(t,x,);

   N = 10 ;
   a = 0.5 ;
  xdot = 2*a*x(1)*(1 - x(1)/N );

and solver is :

x0 = 0.4;

tspan=[0 100];

[t,x]=ode45('test',tspan,x0);

plot (t,x);

Now what do i have to do if i want to set a for loop and varry the values of N from 1 to 10 and solve the diff equation 10 different times for these 10 different value of N and obtain 10 different graphs for the 10 reults ?

Answer 1

[Walter Roberson]

a = 0.5 ;
test = @(t,x,N) 2*a*x(1)*(1 - x(1)/N );

x0 = 0.4;
tspan=[0 100];

for N = 1 : 10
  [t,x] = ode45( @(t,y) test(t,y,N),tspan,x0);
  figure
  plot (t,x);
  title(sprintf('N = %f\n', N));
end