eddy_flux/from_Dimitris/meanslices.m

function m = meanslices(fpat, ilist, ns, nps)

% Function m = meanslices(ilist, ns, nps)
% 
%
% INPUTS
% fpat     string containing file pattern
% ilist    list of iteration values
% ns       number of slices to process at at time
% nps      number of values per slice
%
% OUTPUTS
% m        output array of dimension ns*nps


if nargin ~= 4
  disp('Error: wrong number of arguments')
end

deltatT = 1200;                % model time step size (s)
tavefreq = 259200;             % averaging period (s)
startDate = datenum(1992,1,1); % model integration starting date

oldyear = -1;
newyear = oldyear;

is = 1;
for is = 1:ns
  
  disp(['Processing slice:  ' sprintf('%d',is)]);
  nm = 0;
  m = zeros(nps,1);
  
  i = 1;
  for i = 1:length(ilist)
    
    iter = ilist(i);
    str = datestr(startDate + (iter*deltatT-tavefreq/2)/60/60/24);
    dv = datevec(startDate + (iter*deltatT-tavefreq/2)/60/60/24);
    newyear = dv(1);
    
    fname = sprintf(fpat, ilist(i));    
    disp(['  ' fname '  ' str]);
    fid = fopen(fname, 'r', 'ieee-be');
    offset = (is - 1)*nps*4;
    fseek(fid, offset, 'bof');
    tmp = fread(fid, nps, 'real*4');
    fclose(fid);
    
    if (newyear ~= oldyear) && (nm > 0)
      fnout = sprintf('ave-%d', oldyear);
      disp(['  ==>  Writing file "' fnout '"']);
      fido = fopen(fnout, 'a', 'ieee-be');
      % fseek(fido, offset, 'bof');
      m = m / nm;
      fwrite(fido, m, 'real*4');
      fclose(fido);
      m = zeros(nps,1);
      nm = 0;
    end
    m = m + tmp;
    nm = nm + 1;
    
    oldyear = newyear;
    
  end
end
1	edhill	1.1	function m = meanslices(fpat, ilist, ns, nps)
2
3			% Function m = meanslices(ilist, ns, nps)
4			%
5			%
6			% INPUTS
7			% fpat string containing file pattern
8			% ilist list of iteration values
9			% ns number of slices to process at at time
10			% nps number of values per slice
11			%
12			% OUTPUTS
13			% m output array of dimension ns*nps
14
15
16			if nargin ~= 4
17			disp('Error: wrong number of arguments')
18			end
19
20			deltatT = 1200; % model time step size (s)
21			tavefreq = 259200; % averaging period (s)
22			startDate = datenum(1992,1,1); % model integration starting date
23
24			oldyear = -1;
25			newyear = oldyear;
26
27			is = 1;
28			for is = 1:ns
29
30			disp(['Processing slice: ' sprintf('%d',is)]);
31			nm = 0;
32			m = zeros(nps,1);
33
34			i = 1;
35			for i = 1:length(ilist)
36
37			iter = ilist(i);
38			str = datestr(startDate + (iter*deltatT-tavefreq/2)/60/60/24);
39			dv = datevec(startDate + (iter*deltatT-tavefreq/2)/60/60/24);
40			newyear = dv(1);
41
42			fname = sprintf(fpat, ilist(i));
43			disp([' ' fname ' ' str]);
44			fid = fopen(fname, 'r', 'ieee-be');
45			offset = (is - 1)nps4;
46			fseek(fid, offset, 'bof');
47			tmp = fread(fid, nps, 'real*4');
48			fclose(fid);
49
50			if (newyear ~= oldyear) && (nm > 0)
51			fnout = sprintf('ave-%d', oldyear);
52			disp([' ==> Writing file "' fnout '"']);
53			fido = fopen(fnout, 'a', 'ieee-be');
54			% fseek(fido, offset, 'bof');
55			m = m / nm;
56			fwrite(fido, m, 'real*4');
57			fclose(fido);
58			m = zeros(nps,1);
59			nm = 0;
60			end
61			m = m + tmp;
62			nm = nm + 1;
63
64			oldyear = newyear;
65
66			end
67			end