/[MITgcm]/MITgcm_contrib/gael/matlab_class/gcmfaces_misc/runmean.m
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Contents of /MITgcm_contrib/gael/matlab_class/gcmfaces_misc/runmean.m

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Revision 1.1 - (show annotations) (download)
Fri Mar 26 20:18:33 2010 UTC (15 years, 3 months ago) by gforget
Branch: MAIN
routines that compute running means

1 %this function does a running mean along dimension dim_cur,
2 %averaging over indices [-nb_cur:nb_cur]
3 %
4 function [field_out]=runmean(field_in,nb_cur,dim_cur);
5
6 if nb_cur~=0
7
8 size_cur=size(field_in);
9
10 perm1to2=[1:length(size_cur)];
11 perm1to2=[dim_cur perm1to2(find(perm1to2~=dim_cur))];
12 perm2to1=[[1:dim_cur-1]+1 1 [dim_cur+1:length(size_cur)]];
13 size_cur2=size_cur(perm1to2);
14
15 field_in2=permute(field_in,perm1to2);
16
17 field_out2=zeros(size_cur2);
18 count_out2=zeros(size_cur2(1),2);
19 for tcur=-nb_cur:nb_cur
20 tmp1=[tcur:tcur-1+size_cur2(1)];
21 tmp2=find(tmp1>=1&tmp1<=size_cur2(1));
22 field_out2(tmp2,:)=field_out2(tmp2,:)+field_in2(tmp1(tmp2),:);
23 count_out2(tmp2,:)=count_out2(tmp2,:)+1;
24 end
25 for tcur=1:size_cur2(1);
26 field_out2(tcur,:)=field_out2(tcur,:)/count_out2(tcur);
27 end
28
29 %field_out=field_in-permute(field_out2,perm2to1);
30 field_out=permute(field_out2,perm2to1);
31
32 else
33 field_out=field_in;
34 end%if nb_cur~=0
35
36

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