How to write the name of file into entry of matrices?

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Frisda Sianipar 2021-5-27

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评论： Stephen23 2021-5-28

在 MATLAB Online 中打开

I want to write the name of some pictures as a entry of a matrices

i have code like this:

myFolder = uigetdir;
filePattern = fullfile(myFolder, '*.jpg');
theFiles = dir(filePattern);
BanyakGambar=length(theFiles)
for k = 1 : BanyakGambar
    baseFileName = theFiles(k).name;
    fullFileName = fullfile(theFiles(k).folder, baseFileName);
    fprintf(1, 'running %s\n', baseFileName);
    D(k,1)=k;
    s=string(baseFileName);
    D(k,2)=s;  %This line is the problem!! 
end

but why the name of the pictures can't display in matrices D, and i got this result for matrices D

i expect the result is like this (manually write in excel). Thankyou in advance

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Frisda Sianipar 2021-5-28

okay sir

Stephen23 2021-5-28

http://web.archive.org/web/20210528044602/https://www.mathworks.com/matlabcentral/answers/841640-how-to-write-the-name-of-file-into-entry-of-matrices

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回答（1 个）

Walter Roberson 2021-5-27

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编辑：Walter Roberson 2021-5-28

You cannot do that. It is never possible to store a string() or character vector into a numeric object.

You need to use a cell array or struct or table()

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Frisda Sianipar 2021-5-28

Can you give some example to do that sir?

Walter Roberson 2021-5-28

在 MATLAB Online 中打开

word = {'hello'; 'Frisda'}
word = 2×1 cell array
    {'hello' }
    {'Frisda'}
number = [86; 99]
number = 2×1
    86
    99
as_cell = [word,  num2cell(number)]
as_cell = 2×2 cell array
    {'hello' }    {[86]}
    {'Frisda'}    {[99]}
as_table = table(word, number)
as_table = 2×2 table
       word       number
    __________    ______

    {'hello' }      86  
    {'Frisda'}      99  
as_struct = struct('word', word, 'number', number)
as_struct = 2×1 struct array with fields:
    word
    number