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Why are the matrix numbers changing while converting table to matrix?
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matlabuser
am 20 Dez. 2020
Kommentiert: matlabuser
am 20 Dez. 2020
I have a table named "tres_big" of size (324 x 65). It's a time series dataset. I wanted it to convert to a matrix without the "Date" column so I removed that first. But when I applied the "table2array" function, the elements of the several columns changed to 0.
% removes the "Date" column from "tres_big"
tresc_big= removevars(tres_big,{'Date'});
% convert into matrix
data_big = table2array(tresc_big);
This is the original table:
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/466175/image.png)
This is what happens after I convert into matrix
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/466185/image.png)
What can I do to fix the problem? I would like to have the original numbers as in the table. I would appreciate any help.
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Cris LaPierre
am 20 Dez. 2020
They are not changing, but you must have some large numbers in your data. When you convert the table to a matrix, it expresses all the numbers using the same format. Note the multiplier under data_big (
x). This means everything is you matrix is times 100,000. This causes your smaller values to not have anything but zeros appear in the display, though the values are still there.
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/466190/image.png)
You can modify the command window output display with the format function. See the format options here.
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