For loop to extract string with if function

Hello,

i have a problem and already working so long on it finding no solution. I have following 2x44 string

Now i want to write a code, that check whether the first line is true or false and, depending on that, the string in line 2 should be processed differently. The 2x44 string is called E. This is my code:

for i = 1:length(E)
    if strcmp(E{1,i},'false') 
  
            str = extractBetween(Variables,"ElmSite.",".ElmTerm");
             
    elseif strcmp(E{1,i},'true')
        
            str = extractBetween(Variables,"ElmLne","Term");             
    end    
end

As a result i would like to get a 1x44 string which is called for example str and looks like the following

Can someone help me? or give me a hint how it works easier?

[Stephen23]

C = {'ElmSite.1.ElmTerm'; 'ElmSite.2.ElmTerm'; 'ElmLne.3.ElmTerm'; 'ElmLne.4.ElmTerm'};
D = regexp(C,'\d+(?(?<=Lne\.\d+)[^T]+)','match','once')

D = 4×1 cell array
    {'1'    }
    {'2'    }
    {'3.Elm'}
    {'4.Elm'}

Answer 1

[David Fletcher]

Nothing seems to be particularly wrong in the code - the only thing that stands out is that the str variable will be overwritten on each iteration so you only end up with the last value. If you want the output you have stated, you will need to save the str values as the loop progresses. Using a bit of dummy data:

a='false';
b='true';

Data{1,1}=a;
Data{1,2}=a;
Data{1,3}=a;
Data{1,4}=a;

Data{2,1}='ElmSite.1.ElmTerm';
Data{2,2}='ElmSite.2.ElmTerm';
Data{2,3}='ElmSite.3.ElmTerm';
Data{2,4}='ElmSite.4.ElmTerm';

for i = 1:size(Data,2)
    if strcmp(Data{1,i},'false') 
  
            extract{i} = extractBetween(Data{2,i},"ElmSite.",".ElmTerm");
             
    elseif strcmp(Data{1,i},'true')
        
            extract{i} = extractBetween(Data{2,i},"ElmLne","Term");             
    end    
end

[Benedikt Skurk]

Thanks a lot! Finally i could figure it out