Garbage values when storing the data into .dat file

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Shashi TG 2017-2-27

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编辑： Jan 2017-2-27

Hello there, I have a 3D array having data type float. When i store this array into a .txt or .mat file and then open it, it has only random data.

I am using the following command: save('test.txt','x'); Can someone help me?

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Answer 1

Jan 2017-2-27

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编辑：Jan 2017-2-27

What you see is the expected output: The 3D array is writting in binary format to the MAT file. It is not random and after a load() you get back the original data.

What exactly is your question? Do you want to create a text file, which can be read by humen? If so, are you really sure, that you need this? A 3D-array need some reshaping to a 2D-matrix for awriting it to a file. Then the values and the structure is not clear anymore in every case. Therefore I'd suggest to stay at the binary format and use Matlab as a viewer of the data, not Notepad.

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Stephen23 2017-2-27

+1 for asking what the point is.

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Answer 2

Walter Roberson 2017-2-27

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在 MATLAB Online 中打开

save('test.txt', 'x', '-ASCII')

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Answer 3

Shashi TG 2017-2-27

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Hi thanks for reply. It throws me following error:

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Walter Roberson 2017-2-27

Sorry, I overlooked that it is 3D. There is no standard text representation for 3D arrays.

It would be possible to write the array to a .m file as code that would recreate the 3D array. For example it could build all the slides and cat(3) them together.

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