load a file containing disorganized data

Question

Alexandre Williot 2015-4-24

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/213437-load-a-file-containing-disorganized-data

回答： Alexandre Williot 2015-4-28

Hello,

I load a file containing disorganized data files and I would get the file number located at the end of the file name. Then have the file number in my final matrix. For that I apply this code

    if strcmp(Fichiers_Travail2(1,end),1)==1
        num_sujet = 1;
    elseif strcmp(Fichiers_Travail2(1,end),2)==1
        num_sujet = 2;
    elseif strcmp(Fichiers_Travail2(1,end),3)==1
        num_sujet = 3;
    elseif strcmp(Fichiers_Travail2(1,end),4)==1
        num_sujet = 4;
    elseif strcmp(Fichiers_Travail2(1,end),5)==1
        num_sujet = 5;
    elseif strcmp(Fichiers_Travail2(1,end),6)==1
        num_sujet = 6;
    elseif strcmp(Fichiers_Travail2(1,end),7)==1
        num_sujet = 7;
    elseif strcmp(Fichiers_Travail2(1,end),8)==1
        num_sujet = 8;
    elseif strcmp(Fichiers_Travail2(1,end),9)==1
        num_sujet = 9;
    elseif strcmp(Fichiers_Travail2(1,end),10)==1
        num_sujet = 10;
    end

But I have this error message and I don't understand why because I used the same for another information and it works:

??? Undefined function or variable 'num_sujet'.

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Answer 1

Alexandre Williot 2015-4-28

0
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/213437-load-a-file-containing-disorganized-data#answer_176996

在 MATLAB Online 中打开

Ok, this is what I needed: I just had to put the values into brackets and include the file extension in my calculation

    if strcmp(Fichiers_Travail2(1,end-4),'1')==1
              num_sujet = 1;
          elseif strcmp(Fichiers_Travail2(1,end-4),'2')==1
              num_sujet = 2;
          elseif strcmp(Fichiers_Travail2(1,end-4),'3')==1
              num_sujet = 3;
          elseif strcmp(Fichiers_Travail2(1,end-4),'4')==1
              num_sujet = 4;
          elseif strcmp(Fichiers_Travail2(1,end-4),'5')==1
              num_sujet = 5;
          elseif strcmp(Fichiers_Travail2(1,end-4),'6')==1
              num_sujet = 6;
          elseif strcmp(Fichiers_Travail2(1,end-4),'7')==1
              num_sujet = 7;
          elseif strcmp(Fichiers_Travail2(1,end-4),'8')==1
              num_sujet = 8;
          elseif strcmp(Fichiers_Travail2(1,end-4),'9')==1
              num_sujet = 9;
          elseif strcmp(Fichiers_Travail2(1,end-5:end-4),'10');
              num_sujet = 10;
          else disp (Fichiers_Travail2)
          end