naming using a string function

4 次查看（过去 30 天）
Ayman Mounir
Ayman Mounir 2021-1-7
编辑： Stephen23 2021-1-7
Hello everyone,
I have let's say : x=' a name' ; and B= [1 2 3],
and I want to create a variable ' a name' = B whiche is [1 2 3], in another word i want to create a variable using the string of another variable (example filename='Hallo' the 'Hallo'= B=[1 2 3],
So, I tried to use [x]=B; but it does not work;
  3 个评论
显示 1更早的评论
Ayman Mounir
Ayman Mounir 2021-1-7
actually, I read many csv data and concantae them in one matlab table then i have to save as the specfic name :
for example: dir()
all_table=[] % concatenate all csv files
for i=1:numel(files);
R= readtable((files(i).name));
all_table=[all_table;R];
save (all_table, 'standard_name') % mast save as mat file because i exceeded 2^20 ( the limit of exporting an excel file) but this command does not include an option to save the file with desired name.
:D
Stephen23
Stephen23 2021-1-7
编辑：Stephen23 2021-1-7
@Ayman Mounir: your save usage makes no sense.
The first input argument of save must be a filename, so why are you providing a table as the first input?
The second input is usually the name of the variable to be saved, it is not clear what you expect the character vector 'standard_name' to achieve. I recommend that you read the save documentation, it explains how to use save.
In any case, magically defing variable names is unlikely to be a suitable solution to ... whatever you problem might be.
https://www.mathworks.com/matlabcentral/answers/304528-tutorial-why-variables-should-not-be-named-dynamically-eval

请先登录，再进行评论。

请先登录，再回答此问题。

回答（2 个）

Catalytic
Catalytic 2021-1-7
s.(x)=B
Stephen23
Stephen23 2021-1-7
编辑：Stephen23 2021-1-7
The MATLAB approach:
N = numel(files);
C = cell(1,N);
for k = 1:N
F = fullfile(files(k).folder,files(k).name);
C{k} = readtable(F);
end
dataname = vertcat(C{:});
save('some_file_name.mat', 'dataname')

类别

在 Help Center 和 File Exchange 中查找有关 Matrix Indexing 的更多信息

标签

产品


版本

R2020b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by