how to use this script with multiple data

asri

2011 12 27

0 个回答

4 次查看（30 天）

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hi hi I'm just learning matlab. I have a script to process the satellite data are only for 1 hour. I had to do the data every hour for 2 months. please help me to edit this script. The formula by subtracting the data at the same hour.

nx=141;ny=81;
dlon=0.05;dlat=0.05;
lat=-8:dlat:-4;
lon=103:dlon:110;
%load data tbb
fid1=fopen('IR1_10101501.dat','r');
fid2=fopen('IR2_10101501.dat','r');
tbb1=fread(fid1,[nx,ny],'float32');
tbb2=fread(fid2,[nx,ny],'float32');
tbb12=tbb1-tbb2;
for j=1:ny-1
    for i=1:nx-1 
           tbb12=tbb1-tbb2;  
    end
end 
fclose(fid1);
fclose(fid2);

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Jan 2011-12-27

To make a helpful answer much easier, delete all lines, which do not concern the problem in the posted code. Currently it is hard to see, what you want to modify.

Walter Roberson 2011-12-29

Note: your lines

tbb12=tbb1-tbb2;

for j=1:ny-1

for i=1:nx-1

tbb12=tbb1-tbb2;

end

have the nested for loops repeating over and over again the tbb12=tbb1-tbb2 that was already done outside the loop. At this time those nested for loops appear to be redundant.

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