Combine variables in workspace into one table?

Question

Katrina Anderson 2018-9-6

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https://ww2.mathworks.cn/matlabcentral/answers/417754-combine-variables-in-workspace-into-one-table

回答： Peter Perkins 2018-9-7

Hi, I have a workspace that has 50+ variables I have calculated such as movmean for 9 axis of data, mov median.. etc [1048575x1 double] and I would like to combine them into one table. Or at least combine some?

Is this possible?

(I am trying to classify behaviour from the data)

Thankyou!

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Stephen23 2018-9-6

This might be relevant:

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

How did you get all of those variables into the workspace?

Katrina Anderson 2018-9-6

Thankyou for your help.

I will looking to that link.

I am calculating a 1 second window for each signal (Acc x Acc y gyro xyz magxyz and resultants) so thats 12 signals.. and for each one I am calculating mean median range std, etc. Im not sure if there is an easier way to do this so can have them automatically calculate in one table? haha

Thanks

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Answer 1

ahmed nebli 2018-9-6

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https://ww2.mathworks.cn/matlabcentral/answers/417754-combine-variables-in-workspace-into-one-table#answer_335685

编辑：Stephen23 2018-9-6

is this link helpful ?

https://www.mathworks.com/help/stats/create-a-dataset-from-workspace-variables.html

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Stephen23 2018-9-7

Note that this answer creates an outdated dataset array, which are not recommended. The linked page states clearly to use tables instead: "The dataset data type might be removed in a future release. To work with heterogeneous data, use the MATLAB® table data type instead. See MATLAB table documentation for more information."

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Answer 2

Peter Perkins 2018-9-7

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https://ww2.mathworks.cn/matlabcentral/answers/417754-combine-variables-in-workspace-into-one-table#answer_335904

在 MATLAB Online 中打开

If you created those variables in the workspace, surely you could have created them in a table to begin with?

t = table();
t.SomeVarName = fun(something)

If you really have 50 variables in the workspace, then you will need to call the table constructor and list them all out as inputs. If they were in a cell array you could do this

t = table(c{:})