clear 
clear path 

global Nx Ny Nz
global lat long dz dm mdep
global delt_su su_its t_su delt
global descriptor this_path
global f deltaf Q beta r_expt r_heat H
global time rots it
global g Cp rho_bar alpha
global u v t w
global iterations


param_file_name =   ...
   input(' Please enter the name of the m-file with the parameters for this run : ','s') ;
feval(param_file_name) ;
path   = this_path 
cmdstr=['cd ' path ];
eval(cmdstr);
path=pwd

XCenter = Nx/2 ;
YCenter = Ny/2 ;
R2 = 2*r_heat/dm ;
% create large circular mask
mask=ones(Nx,Ny); 
for i=1:Nx
  for j=1:Ny
    DispX=XCenter-i;
    DispY=YCenter-j;
      if ( DispX^2 + DispY^2 >= R2^2 ) 
        mask(i,j)=0;
      end
  end
end

figure;hold on
%set(gca,'XLim',[10000 35000])
set(gca,'YLim',[0.0 1.0])
sizeit=size(iterations);
meanmudgeu=zeros(sizeit(1),1);

for i=1:sizeit(1)
mufilename=(['TWcorrectionu.' iterations((i),1:10) ]);
mudgeu=rdmeta(mufilename,'b');
meanmudgeu(i,:)=sum(sum(mudgeu.*mask))/sum(sum(mask));
plot(eval(iterations((i),1:10)),meanmudgeu(i,:),'o');drawnow
end

title(descriptor)
xlabel('timestep')
ylabel('mean mudgeu')
grid

%save meanmudgeu meanmudgeu
%save iterations iterations