How to select and read csv data file using uigetfile?

Question

Arshey Dhangekar 2021-10-5

0
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https://ww2.mathworks.cn/matlabcentral/answers/1467341-how-to-select-and-read-csv-data-file-using-uigetfile

评论： Mathieu NOE 2021-10-11

I want to implement select and read file using uigetfile. How can I implment in my code to read the data?

clc
clear all
[file,path,~]=uigetfile('*.csv');
T=fullfile(path,file);
T = readtable(T);
T.Time=minutes(T.Time)

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

Jan 2021-10-6

warning off is an extremely bad idea. Warnings are essential und useful.

Your code contains an import of the files already. So what exactly is your question?

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Answer 1

Mathieu NOE 2021-10-6

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https://ww2.mathworks.cn/matlabcentral/answers/1467341-how-to-select-and-read-csv-data-file-using-uigetfile#answer_802596

编辑：Mathieu NOE 2021-10-6

在 MATLAB Online 中打开

hello

if you want to grad multiple files with uigetfile, you can do that :

% It is important to grab the files in ascending order
file_list = uigetfile('*.csv', 'Grab the files you want to process', 'MultiSelect', 'on');
if iscell(file_list) == 0
    file_list = {file_list};
end

but I find more efficient to use this , in order to load automatically all files once sorted properly (what matlab is not good at)

see : https://fr.mathworks.com/matlabcentral/fileexchange/47434-natural-order-filename-sort

how to use it : (example)

%% read multiple files 
P = pwd; % currrent directory
S = dir(fullfile(P,'*.csv')); % get list of files in directory
fileNames_sorted = natsortfiles({S.name}); % sort file names into order (https://fr.mathworks.com/matlabcentral/fileexchange/47434-natural-order-filename-sort)
nFiles = numel(fileNames_sorted);
for k = 1:nFiles
    F = fullfile(P, fileNames_sorted{k});
    S(k).data = csvimport(F); % or READTABLE or whatever.
end
% Take a look in the structure S: it contains all of your file data and the corresponding filenames, just as you require.
% For example, the 2nd filename and its data:
S(2).name
S(2).data
% Accessing and processing this will be much simpler than messing around with dynamically named variables.