How to remove warning message when we read csv file?

Question

Arshey Dhangekar 2021-10-1

1
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1464619-how-to-remove-warning-message-when-we-read-csv-file

评论： Gabriel 2023-1-9

When I try to read csv file warning message coming. I want to eliminate that message. Since I have more than 30 csv files 30 times warning messages popping. How can I remove all warning message. Here is my code

clc
clear all
d=dir('i*.csv'); 
opts = detectImportOptions(d(1).name,"Delimiter",",");
T = {};
for i=1:numel(d)
    fid = fopen(d(i).name,'r');
    nhdr = 8 + cell2mat(textscan(fid,'Total Channels:%f',1,'HeaderLines',5,'Delimiter',','));
    fid = fclose(fid);
    if nhdr == 8   % skip no data in file cases if that occurs (dpb conjecture)
        warning(['No data.  Skipped file: ' d(i).name])  
        continue
    end        
   
    opts.DataLines = [nhdr+2 inf];
    opts.VariableNamesLine = nhdr+1;
   
    T{i} = readtable(d(i).name,opts);
end

And warning message

Warning: Column headers from the file were modified to make them valid MATLAB identifiers before creating variable names for the table. The original column headers are saved in the VariableDescriptions property.
Set 'VariableNamingRule' to 'preserve' to use the original column headers as table variable names.