Retrieve strings into a structure wihin a loop

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Data.zip

Hi,

I have a series of folders called "storm_1", "storm_2", etc.

Each folder contains a number of *.dat files named as "NUM_SPEC_1978_6_5_0_0.dat_simo.dat", where the numbers are showing a date that I need to retrieve.

I would like to read through the folders and files and get a structure where I can see the dates of all files contained in each folder. For instance storm_1 folder has 13 files, so I would have 13 dates inside. Something like Structure.storm_1()

I attach a couple of folders as an example.

Can I get some help to retrieve the dates as efficiently as possible?

Thanks

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Isma_gp 2019-2-21

a= dir('**/*simo.dat'); 
for i = 1:length(a)
a(i).name = a(i).name (10:end)
a(i).name = erase(a(i).name, ".dat_simo.dat")
end
dates = []
for i = 1:size(a,1)
    mydata = [a(i).name]
    [~,d,~] = fileparts(a(i).folder)
    dates = setfield(dates,d,'storm_dates',mydata)
end

Isma_gp 2019-2-21

I'm trying this code, but I only get the first file into each storm within the structure. Can I get some help fixing it? so that all the dates from the same storm are saved into that storm?

Thanks

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Answer 1

per isakson 2019-2-21

编辑：per isakson 2019-2-21

在 MATLAB Online 中打开

0 个投票

Haven't used setfield() for a long time. Which release do you use?

Try this

>> Storm = cssm()
Storm = 
  struct with fields:
    storm_1: [1×1 struct]
    storm_2: [1×1 struct]
>> Storm.storm_1
ans = 
  struct with fields:
    D_1978_06_05_00: 'NUM_SPEC_1978_6_5_0_0.dat_simo.dat'
    D_1978_06_05_03: 'NUM_SPEC_1978_6_5_3_0.dat_simo.dat'
    D_1978_06_05_06: 'NUM_SPEC_1978_6_5_6_0.dat_simo.dat'
>> 

where

function  Storm = cssm()
    sad = dir( '**/*simo.dat' );
    for file = reshape( sad, 1,[] )
        cac = regexp( file.name, '\d[\d_]+', 'match' );
        sdn = datenum( cac{:}, 'yyyy_mm_dd_HH_MM' );
        str = [ 'D_', datestr( sdn, 'yyyy_mm_dd_HH' ) ];
        [ ~, ddd ] = fileparts( file.folder );
        Storm.(ddd).(str) = file.name;
    end
end

The hours must be included in the field names to make them unique. I added 'D_' because field names must be legal Matlab names.

Wouldn't it be more useful to put the info into a table rather than a struct?

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