Matlab - Gráficar en el GUI con Ode45

function pushbutton1_Callback(hObject, eventdata, handles)

% hObject    handle to pushbutton1 (see GCBO)

% eventdata  reserved - to be defined in a future version of MATLAB

% handles    structure with handles and user data (see GUIDATA)

function rk = f(t,v)

% m=input('masa del paracaídista, m: ');

% v=input('velocidad inicial , v: ');

global m;

% v=176;

g=9.8;

c=10.5;

% rk=g*v^2)/256-m);

% rk=-g+(4/15)*(y^2)/m;

% rk=(m*g/c)*(1-exp-(c/m)*t);

rk=g-(c/m)*v;

timerange=[0 30];

alturainicial=0;

[t,v]=ode45(@f,timerange,alturainicial)

% plot(t,v)

plot(handles.grafica,t,v)

xlabel('tiempo t(s)')

ylabel('Velocidad (m/s)')

hold(handles.grafica ,'on')

ylabel('v');

xlabel('t')

title('caídaparacaidista')