CODEWITHSUNDEEP
matlab
Ankoor
Ankoor

Reputation: 29

How to read files using for loop in Matlab?

I need to read 8760 files (365 days * 24 hours = 8760) of small size (60 kb) and aggregate values and take average of some values.

Earlier, I have used the below stated code for reading *.csv files:

for a=1:365
for b=1:24

s1=int2str(a);
s2=int2str(b);
s3=strcat('temperature_humidity',s1,'_'s2);

data = load(s3);

% Code for aggregation, etc

end
end

I was able to run this code. However now the file name is little different and I am not sure how to read these files.

Files are named like this:

2005_M01_D01_0000(UTC-0800)_L00_NOX_1HR_CONC.DAT

where M = Month, so the values are 01, 01, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12; D = Day, so the values are 01, 02, 03, ..., 31; Hours is in this format: 0000, 0100, 0200, ..., 1800, ..., 2300.

Please take a look at the attached image for file name . I need to read these files. Please help me.

Thank you very much.

Upvotes: 0

Views: 278

Answers (1)

Sheldon
Sheldon

Reputation: 614

I would use dir:

files=dir('*.dat')

Or you can construct the filenames with

name = sprintf('%d_M%2d etc.',...)

Upvotes: 1

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