windows and mac differences in basic functionality readtable

Question

Stephen Devlin 2018-1-30

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/379726-windows-and-mac-differences-in-basic-functionality-readtable

回答： Walter Roberson 2018-6-7

Hi,

I have a gui that runs perfectly fine on a Mac with 2017a, when I run it on win2017a (prior to compiling it) I get numerous errors. This one however I do not understand at all

Undefined operator '>' for input arguments of type 'cell'

I can trace it back to the line which reads in the data...

data=readtable(files(k).name,'FileType','text','Delimiter','tab','TreatAsEmpty',['UND. -60001','UND. -2011','UND. -62011']);

the Mac and Windows versions run this differently, the Mac honors the TreatAsEmpty, note on the Mac it requires double quotes (" ") around each argument to exclude as empty whereas the Windows version called that an error and wanted single quotes, it then does nothing with them. This leads to the array being a table in the Mac version of the GUI and a cell in the Windows version, I just can't see why some fundamental matlab basics would be so different between the versions?

Any ideas?

Best regards

Steve

close all
clear all
clc
       AA=uigetdir('\\company.com\data\users\ProfileFolders\my.name\Desktop\');   
      A1=string(AA)
            Folder_strings=char(strcat(A1,'/*.txt'))
            Folder_used=dir(Folder_strings)
            files=Folder_used
            nFiles=numel(files)
            nameHead=(files(1).name)
            expressionA = 'P\H\d\d\d\_'
            nameOfHead= regexp(nameHead,expressionA,'match')
            nameOfHead=nameOfHead{:}
            nameOfHead=(nameOfHead(1,1:5))
for k=1:nFiles
            data=readtable(files(k).name,'FileType','text','Delimiter','tab','TreatAsEmpty',['UND. -60001','UND. -2011','UND. -62011']);
            name3D=(files(k).name);
            RN=name3D;
            expression1 = 'M\d\R\d\_';
            Z(k)= regexp(RN,expression1,'match');
            %%Assign variables to data
            vel_NS=data.Velocity_ms;%-NS.....Nozze Scan data
%             vol_NS=data.Volume_pl;
%             traj_NS=data.Trajectory_deg;
%             noz_NS=data.ExpID;
                vel_NS(vel_NS > 10)=NaN;%for awful data exceeding 10m/s this will remove them
  end