Convert mat file to excel python
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It sounds like what you want to do is make a .csv file with the keys "a", "b", etc. as the column names and their corresponding arrays as data associated with each column. If so, I would recommend using Star Embed What would you like to do? Converting mat files to csv using python, scipy and pandas
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Please help me out in a detail manner xlswrite command is not working 8 CommentsDirect link to this comment⋮
please show the code that you already tried? Direct link to this comment⋮
Hi I tried to convert my .mat data to .xls but unable to do it. The .mat file data struct contains huge amount of data i.e the 107968x1 for all the variables. I want to convert it to a .xls can anyone give idea in this regard. Direct link to this comment⋮
Xls files are limited to 65535 rows. If you managed to create a file that big then Excel itself would be unable to read it. You will need to use xlsx Direct link to this comment⋮
Can i export my .mat file data to xlsx? Is there any procedure for doing with matlab code? Please advise... Direct link to this comment⋮
xlswrite() can write .xlsx files. If your data is in the form of a table() or timetable() object, then writetable() can write it to .xlsx Direct link to this comment
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I have an error for converting .mat files into .xlsx files ,I used this code load('train_subject01.mat') xlswrite('kokytest.xlsx', train_subject01) and matlab gives me this error message Undefined function or variable 'train_subject01'. so please could anyone help me to solve it ? Thanks in advance Direct link to this comment⋮
Your .mat file train_subject01.mat did not contain a variable named train_subject01 . You should use whos -file train_subject01.mat to see the names of the variables in the file. Direct link to this comment⋮
我做了一个matToExcel工具可以在线处理这个问题 Sign in to comment. Accepted Answer
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data=load('FileName'); f=fieldnames(data); for k=1:size(f,1) xlswrite('FileName.xlsx',data.(f{k}),f{k}) end 15 CommentsDirect link to this comment⋮
Thanks for your reply Actually the problem is in my mat file i have many date types like CELL, Structure,character etc. Direct link to this comment⋮
Doesn't matter. Just make up one big cell array with all your various variables in it, and pass it to xlswrite(). Direct link to this comment⋮
Should still work, Azzi's answer puts everything on it's own sheet. If you know how you want your excel to look, format into a giant cell (per sheet), ala Image Analyst's answer.
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thank you, i have a same problem and this work for me. Direct link to this comment⋮
i also have the same problem and now it has been solved. thanks! Direct link to this comment⋮
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Thank you the mat file successfully saved as excel sheet Direct link to this comment⋮
Thank you so much. It worked Direct link to this comment⋮
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Hi, I used the code provided by Azzi to write a .mat file to .xlsx, but halfway through Matlab provides a warning saying that it will use writecsv instead. To quicken the process, I tried changing the xlswrite to csvwrite (perhaps naively so) and Matlab keeps coming up with the error: 'not a valid attribute or row offset'. What would be the best way to use csvwrite with a pre saved .mat file? Direct link to this comment
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I am getting the below error Error using xlswrite (line 170) Input data must be a numeric, cell, or a logical array Direct link to this comment⋮
When you see a warning that writecsv will be used instead, then you know that either you are not using MS Windows, or else you are using MS Windows but Excel cannot be found. In such a case you should switch to using writetable() instead if possible. Direct link to this comment⋮
xlswrite() cannot be used to write variables of arbitrary datatype to xls or xlsx files. It can only be used to write numeric arrays, or logical arrays, or cell arrays in which each entry is a numeric value, or a logical value, or a character vector (or, these days, a string() scalar). writetable() can handle some additional datatypes, but some datatypes it will simply leave empty cells for. For example, it will leave empty cells for Control System Toolbox transfer functions, or for symbolic expressions. Direct link to this comment⋮
Hi, I am trying to convert an output mat file which contains 1.5MM rows of numbers to an excel file.Smeone suggested I change it from 3D to 2D first. I tried the following codes and nothing works. Can you fix it? S=load('QQ_full.mat'); data=S.QQ; data=reshape(data,size(data,1)*size(data,2),size(data,3)); writetable(S.QQ,data,'Sheet',1,'Range','A1') Error using writetable (line 248) Unsupported type 'double'. Use writematrix instead. Did you mean: >> writematrix(S.QQ,data,'Sheet',1,'Range','A1') Error using matlab.io.xml.internal.write.errorIfXML (line 6) FILENAME must be a non-empty character vector or string scalar. Error in writematrix (line 196) fileType = matlab.io.xml.internal.write.errorIfXML(filename, supportedFileTypes, varargin{:}); Direct link to this comment⋮
Okay, at that point S.QQ and data are the same. data=reshape(data,size(data,1)*size(data,2),size(data,3)); and data gets reshaped so S.QQ and data now have the same content but different shape. writematrix(S.QQ,data,'Sheet',1,'Range','A1') You are asking to write out S.QQ, which is the original shape, and you are asking that it be written to a file whos name is stored in data . You should be using something like
writematrix(data, 'Q_reshaped.xlsx', 'Sheet', 1, 'Range', 'A1') However... I am trying to convert an output mat file which contains 1.5MM rows of numbers to an excel file. You have a problem. The largest file that excel supports is 1048576 rows, and you are creating more rows when you reshape. The maximum number of columns for excel is 16384, so you would need to use permute() and reshape() to re-arrange your data to have fewer rows but more columns, but still fit within the 2^20 x 2^14 = 2^34 element = 16 giga-element (powers-of-two meaning of "giga" here). If numel(s.QQ) > 2^34 then you have no hope of fitting it into a single excel sheet. You might want to write sections to different sheets. What is size(S.QQ) ? Sign in to comment. More Answers (1)
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how to load my own datset for training and testing.... nprtool only respond inbuilt or example dataset..not my dataset,,,, 2 CommentsDirect link to this comment⋮
How are your datasets represented? nprtool permits you to indicate which variable to use, or if you use the '...' button to the right of that, you can select a text file or .mat file to read data from.
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This code working fine(mat to xls). Sign in to comment. See AlsoCategoriesCommunity Treasure HuntFind the treasures in MATLAB Central and discover how the community can help you! Start Hunting! An Error Occurred Unable to complete the action because of changes made to the page. Reload the page to see its updated state.
How do I convert a mat file to Excel?Type the command "load NewFile" in the command window and press the "Enter" key, where "NewFile" is the name of the ". mat" file you wish to convert to an ". xls" file. This command will load the contents of the ".
How do I read a .MAT file?How to Open an MAT File. MAT files that are Microsoft Access Shortcut files can be created by dragging a table out of Access and to the desktop or into another folder. Microsoft Access needs to be installed in order to use them. MATLAB from MathWorks can open MAT files that are used by that program.
Can we read .MAT file in Python?Matlab 7.3 and greater
Beginning at release 7.3 of Matlab, mat files are actually saved using the HDF5 format by default (except if you use the -vX flag at save time, see in Matlab). These files can be read in Python using, for instance, the PyTables or h5py package.
How do I run a .MAT file in Python?How to read .. Install scipy. Similar to how we use the CSV module to work with . ... . Import the scipy. io. ... . Parse the . mat file structure. ... . Use Pandas dataframes to work with the data. Now that you have the information and the data retrieved, how would you work with it?. |