array2table won't accept variable name input

Question

Bob Thompson 2021-3-24

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https://ww2.mathworks.cn/matlabcentral/answers/782668-array2table-won-t-accept-variable-name-input

评论： Bob Thompson 2021-3-24

I am attempting to turn an array into a table before I output it into a file, and I am running into an error when I attempt to try and put variable names into my table.

data = randi(100,10,5);
headers = {'T','1','2','3','4'};
tabl = array2table(data,'VariableNames',headers);

Error using array2table (line 62)

'1' is not a valid variable name.

Error in TestCode (line 3)

tabl = array2table(data,'VariableNames',headers);

I don't understand why '1' is not a valid variable name. Can I not use numbers, even when they're a string? I have confirmed the class is 'char' for the actual contents of the headers cell, but it still doesn't seem to like it.

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Answer 1

Jan 2021-3-24

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/782668-array2table-won-t-accept-variable-name-input#answer_657288

在 MATLAB Online 中打开

Which Matlab version are you using? In the current version 2021a I find:

doc table
% Variable names can have any Unicode® characters,
% including spaces and non-ASCII characters.

Your code run without problems.

In former Matlab versions the variables of tables needed to be valid Matlab symbols: < 64 characters, ASCII, no spaces, initial character cannot be an underscore or digit.