Dividing a string into sub-strings using a for-loop

Hi,

I have a string as shown below:

FilesID='data_190830_102602.mem,data_191030_141002.mem,data_191230_101612.mem'

I want to extract the characters between the commas - each of them is unique, as they are based on timestamps.

I have tried to built a for-loop as seen below, however, it seems not to terminate and a fault occurs;

 "Index exceeds the number of array elements" 

with respect to this line:

 word{j} = FilesID(qnew:qnew+21)

Here is the entire code:

  j = 1;
    for a=1:length(FilesID)
     
       for q = (j-1):22:length(FilesID) 
         qnew=q+a;
    
         word{j} = FilesID(qnew:qnew+21)
         a=a+1;    
         j = j+1;  
           
       end
    end

Thanks

Answer 1

[Cris LaPierre]

Why a for loop? I would use strsplit

FilesID='data_190830_102602.mem,data_191030_141002.mem,data_191230_101612.mem';
prts = strsplit(FilesID,',')

prts = 1x3 cell array
    {'data_190830_102602.mem'}    {'data_191030_141002.mem'}    {'data_191230_101612.mem'}

[Laura Nielsen]

You are right. However, I am also interest in a solution based on a for-loop in order to understand such function to a greater extent. Is this possible?

[Cris LaPierre]

I'm sure it is. I'll let you explore that.

[Cris LaPierre]

If it helps, what you are looking for might be called parsing a string, or string tokenization. See if this example is more along the lines of what you needed.