how can i use a loop to run the specific code

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Joydeb Saha
Joydeb Saha on 18 Apr 2022
Commented: Joydeb Saha on 10 May 2022
If there are number of datafiles in the current folder, how can i use a loop to run the specific code? attaching the code. the folder name is 2002. and data file names are 200201,200202,200203 etc. I need a single matrix giving the Q values for all the data files.
data_Wwind=netcdf('E:\data\2002\200201.nc'); % input address of data folder
cot=data_Wwind{'M2TMNXRAD_5_12_4_TAUHGH'}(:);
th5 = cot > 5;
B = double(th5);
Q=sum(B(:) == 1);

Accepted Answer

KSSV
KSSV on 18 Apr 2022
ncFiles = dir('E:\data\2002\*.nc')
N = length(ncfiles) ;
Q = zeros(N,1) ;
for i = 1:N
ncFile = fullfile(ncFiles(i).folder,ncFiles(i).name) ;
cot=data_Wwind{'M2TMNXRAD_5_12_4_TAUHGH'}(:);
th5 = cot > 5;
B = double(th5);
Q(i)=sum(B(:) == 1);
end
  6 Comments
Joydeb Saha
Joydeb Saha on 10 May 2022
ncFiles = dir('E:\data\2002\*.nc');
N = length(ncFiles) ;
Q = zeros(N,1) ;
for i = 1:N
ncFile = fullfile(ncFiles(i).folder,ncFiles(i).name) ;
data_Wwind=netcdf(ncFile);
cot=data_Wwind{'M2TMNXRAD_5_12_4_TAUHGH'}(:);
th5 = cot > 3;
B = double(th5);
Q(i)=sum(B(:) == 1);
end
I have used this code to find the total number of pixels those are above threshold 3 for all the data files in the folder. How can I find the mean value of cot for all the data files only for the pixels those are above threshold three(3)?

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More Answers (1)

Jongil Lee
Jongil Lee on 18 Apr 2022
Hi, Joydeb
I found similar question as below, please check this link.

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