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

Question

Laura Nielsen 2021-1-13

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/716228-dividing-a-string-into-sub-strings-using-a-for-loop

评论： Cris LaPierre 2021-1-13

采纳的回答： Cris LaPierre

在 MATLAB Online 中打开

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

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Cris LaPierre 2021-1-13

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/716228-dividing-a-string-into-sub-strings-using-a-for-loop#answer_597408

在 MATLAB Online 中打开

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'}

3 个评论
显示 1更早的评论隐藏 1更早的评论

Cris LaPierre 2021-1-13

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

Cris LaPierre 2021-1-13

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.

请先登录，再进行评论。