Load data and store in workspace in individual variables

Question

Ander Alberro 2023-11-3

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2042421-load-data-and-store-in-workspace-in-individual-variables

评论： Stephen23 2023-11-4

Hello, I'm trying to load data and that load data storing with different names in the workspace to use them later. So far I've done the following code:

for x = (0.75:0.75:19.5)
    QTableS = 'Episodes%dQTableMatrixSetPoint%d.mat';
    QTable_x = 'QTable_%d.mat';
    A1 = 50;
    A2 = x*100;
    %%% Name data to load and data to store in workspace
    str_QTable = sprintf(QTableS,A1,A2);
    str_QTable_x = sprintf(QTableS,A2);
    % load data and store in workspace
    str_QTable_x = load(str_QTable);
    str_QTable_x = str_QTable_x.QTable_Matrix;
end

So far it correctly loads the data from each of the store .mat files. But when storing the data to the workspace it overlaps each loop and I only have the last file loaded. What I want is to create a new variable with each loaded data in the workspace for each loaded file.

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Stephen23 2023-11-4

"What I want is to create a new variable with each loaded data in the workspace for each loaded file."

A much better approach is to use indexing, just as the MATLAB documentation shows:

https://www.mathworks.com/help/matlab/import_export/process-a-sequence-of-files.html

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Answer 1

Steven Lord 2023-11-3

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2042421-load-data-and-store-in-workspace-in-individual-variables#answer_1346156

Can you dynamically create variables with numbered names like x1, x2, x3, etc.? Yes.

Should you do this? The general consensus is no. That Answers post explains why this is generally discouraged and offers several alternative approaches.