How to EFFICIENTLY name multiple tables located inside a different cells

Question

balandong 2017-11-27

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/369402-how-to-efficiently-name-multiple-tables-located-inside-a-different-cells

评论： balandong 2017-11-27

nonChange.mat

Dear all, The objective was to rename a table which located inside a different cell container. To make things compact, the CELLFUNC was used. However, I MATLAB output the following error

Input #2 expected to be a cell array, was char instead.

May I know what I have been missing?

Thanks in advance for any advice

The code are

load('nonChange.mat')
varname={'combination','specificity','sensitivity','accuracy','spPsn'};
ddTrans = cellfun(@array2table,'VariableNames',varname,nonChange_Cell,'UniformOutput',false);

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Stephen23 2017-11-27

@balandong: you should also load into a variable, rather than directly into the workspace.

https://www.mathworks.com/matlabcentral/answers/304528-tutorial-why-variables-should-not-be-named-dynamically-eval

balandong 2017-11-27

Thanks for the advice, appreciate it

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Answer 1

per isakson 2017-11-27

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/369402-how-to-efficiently-name-multiple-tables-located-inside-a-different-cells#answer_293287

编辑：per isakson 2017-11-27

在 MATLAB Online 中打开

To solve the first problem, replace the cellfun statement by

ddTrans = cellfun( @(v,m) array2table(m,'VariableNames',v)       ...
                ,  varname, nonChange_Cell,'UniformOutput',false  );

Next problem: the sizes don't match

>> whos nonChange_Cell varname
  Name                 Size               Bytes  Class    Attributes
  nonChange_Cell      33x24            92993344  cell               
  varname              1x5                  652  cell

What do you expect ddTrans to become?
Do you want to create 792 tables all with the same variable names?

If yes, try to replace the cellfun statement by

ddTrans = cellfun( @(m) array2table(m,'VariableNames',varname) ...
                ,  nonChange_Cell,'UniformOutput',false        );

inspect result

>> ddTrans{2,1}
ans = 
    combination    specificity    sensitivity    accuracy     spPsn 
    ___________    ___________    ___________    ________    _______
    1              0.71429        0.38462        0.53191     0.54945
    2                    1              0        0.44681         0.5