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From: Rajeev Narayanan on 24 Feb 2010 18:59
Hello,

I have a following program: Top.m and Parameter_Class.m.

%Top.m

---------------Some Code----------------

Param=Parameter_Class;
Parameter_Class.Param_Chk;

%Parmeter_Class.m
classdef Parameter_Class <handle
properties (GetAccess = public)
TRAC = input('\n\nNumber of Tracjectories: ');
TIME = input('\nTotal Time T: ');
NUMSIM = input('\n Number of Cycle NUMSIM: ');
end


methods
function obj=Parameter_Class(TRAC, TIME, NUMSIM)
obj.TRAC=TRAC;
obj.TIME=TIME;
obj.NUMSIM=NUMSIM;
%STEPSIZE = obj.TIME/obj.NUMSIM;
end


function Param_Chk(obj)

%::::::::::: read and check the keyboard inputs ::::::::::::::::

[n1,n2]=rat(obj.TRAC);
if(~isequal(n2,1) || isempty(obj.TRAC) || obj.TRAC <=0)
error('The number of trajectories must be an integer and greater than zero');
end


[n1,n2]=rat(obj.TIME);
if(~isequal(n2,1) || isempty(obj.TIME) || obj.TIME <=0)
error('TIME must be specified and must be an integer and greater than zero');
end


[n1,n2]=rat(obj.NUMSIM);
if(~isequal(n2,1) || isempty(obj.NUMSIM) || obj.NUMSIM <=0)
error('NUMSIM must be specified and must be an integer and greater than zero');
end


end
end
end

When I excute the program the following error:

??? Input argument "TRAC" is undefined.

Error in ==> Parameter_Class>Parameter_Class.Parameter_Class at 11
obj.TRAC=TRAC;

Error in ==> ASDE_System at 35
Parameter_Class; % Simulation Parameters

Somebody please help. I appreciate it.

Thanks,
rajeev
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