How to pass values from guide to a function called by the script?

    How can I modify or input the values for min, sec , ora ,through guide,  in functia proiectia called by the script proiectiasolve?

A part of the guide code : I have a series of editboxes where I put the values for some parameters. After I press a pushbutton it runs a script and assigns the values to workspace. function edit29_Callback(hObject, eventdata, handles)

    y0(1,1)=str2double(get(handles.edit29,'String'));
    %setappdata(handles.edit29,'x',y0(1,1));
    assignin('base','x',y0(1,1))

    function edit32_Callback(hObject, eventdata, handles)

    second=str2double(get(hObject,'String'));
    tspan=[0 : second];
    assignin('base','tspan',tspan)

    function minutsc_Callback(hObject, eventdata, handles)
    % hObject    handle to minutsc (see GCBO)
    % eventdata  reserved - to be defined in a future version of MATLAB
    % handles    structure with handles and user data (see GUIDATA)
    %min=str2double(get(hObject,'String'));

function pushbutton7_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton7 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

    tspan = str2double(get(handles.edit32, 'string'));
    assignin('base','tspan',tspan)
     min=str2double(get(handles.minutsc, 'String'));

assignin('base','min',min)

    x=str2double(get(handles.edit29, 'string'));
    y=str2double(get(handles.edit26, 'string'));
    z=str2double(get(handles.edit27, 'string'));
    vx=str2double(get(handles.edit28, 'string'));
    vy=str2double(get(handles.edit30, 'string'));
    vz=str2double(get(handles.edit31, 'string'));
    y0=[x;y;z;vx;vy;vz]
  assignin('base','y0',y0)

     an=str2double(get(handles.ancall, 'string'));
  assignin('base','an',an)
  luna=str2double(get(handles.lunasc, 'string'));
  assignin('base','luna',luna)
  zi=str2double(get(handles.zicall, 'string'));
  assignin('base','zi',zi)
  ora=str2double(get(handles.orasc, 'string'));
  assignin('base','zi',zi)
    sec=str2double(get(handles.seccall,'String'));
  assignin('base','sec',sec)
    m=str2double(get(handles.Masaedit, 'string'));
    assignin('base','m',m)
    A=str2double(get(handles.Arias, 'string'));
    assignin('base','A',A)

proiectiasolve

When I press the pushbutton it runs proiectiasolve that contains:

   h=1;                                                                             
    y = zeros(6, tspan(end)/h); 
    y(:,1) = y0;

    for i=1:(tspan(end)/h) 

        H=sqrt(y(1,i)^2+y(2,i)^2+y(3,i)^2);
        k_1 = proiectia(tspan(i), y(:,i), H, m, A, y(4:6, i));
        k1=k_1;
        k_2 = proiectia(tspan(i)+0.5*h, y(:,i)+0.5*h*k_1, H, m, A, y(4:6, i));
        k2=k_2;
        k_3 = proiectia((tspan(i)+0.5*h), (y(:,i)+0.5*h*k_2), H, m, A, y(4:6, i));
        k3=k_3;
        k_4 = proiectia((tspan(i)+h),(y(:,i)+k_3*h), H, m, A, y(4:6, i));
        k4=k_4;

        y(:,i+1) = (y(:,i) + (1/6)*(k1+2*k2+2*k3+k4)*h);  

    end
    Rcsc = ((y(1,:).^2 + y(2,:).^2 + y(3,:).^2).^0.5);

    plot(tspan,Rcsc)

Inside the loop there is a function named proiectia:

function yprim=proiectia(t,y,H,m,A,vit)
secundePeZi = 60*60*24;

n = datenum(an,luna,zi,ora,min,s);
n = n + t/ secundePeZi;

[an,luna,zi,ora,min,sec] = datevec(n);

miu=398600.4418*10^9;
magn=(y(1)^2+y(2)^2+y(3)^2)^(3/2);
yprim=zeros(6,1);
yprim(1,1)=y(4);
yprim(2,1)=y(5);
yprim(3,1)=y(6);
yprim(4,1)=double(-miu*y(1)/magn);
yprim(5,1)=double(-miu*y(2)/magn);
yprim(6,1)=double(-miu*y(3)/magn);
end

the min ,sec, ora and the others from n should be read from the workspace, but when I run the script I get the error:

Variable "min" has been previously used as a function or command name.

And it comes from here:

[an,luna,zi,ora,min,sec] = datevec(n);