## Export a Matrix in txt file

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I'm trying to Export a Matrix to a .txt file with the following Code

with open('outfile.txt','wb') as f: for line in M: np.savetxt(f, line, fmt='%.4f')

The Problem is that the file that I obtain, sparates the numbers in different rows, ant it looks something like:

0.0000 0.0000 0.0000 0. 0000 0.0000 0.0000 0.0000 -0.2 998 -0.2966 -0.2945 …

How could I tell python to use each row of the Matrix M as a new complete row oth the .txt file?

Thank you in advance

If this is a 2-D matrix. The easiest thing to do is make sure it is in numpy format and use numpy.savetxt().

Link to documentation below. https://docs.scipy.org/doc/numpy/reference/generated/numpy.savetxt.html

**How to save a matrix as text file? - MATLAB Answers,** A = round(rand(6,7)*9) % Write this to file. fid = fopen('Mymatrix.txt','wt');. How to export a matrix in a text file? Toggle navigation. I want to save a matrix in a text file with the data organised in columns. ('dataexport.txt',a

Try this:

with open('outfile.txt','wb') as f: for line in M: np.savetxt(f, line + '\n', fmt='%.4f')

'\n' should move caret to new line

**How can I save matrix to .txt file? - MATLAB Answers,** I have numerical matrix size of 64*60 and I like to save it to .txt file. How can I do it as easy as possible? without repeating %d with fprintf? I have a R object say: mat <- matrix(1:100,nrow=20) I want to send this matrix to .txt file so that the exported .txt file contains 20 rows and 5 columns.

You can use Python's built-in file object like such:

M = np.random.randn(10,10) f = open("outfile.txt","w") for row in M: for el in row: f.write("%.4f" %el + ' ') f.write('\n') f.close()

note that this print a new line everytime a row has been fully printed.

**How can save to a matrix to txt file - MATLAB Answers,** I have a matrix (1081x72) in txt file. And I opened it via Microsoft Excel and save it xls format. And, Read this matrix from xls.Then transposed it. I want to save this� What we want, is to generate some keypoints for ANSYS. For the convenience, we want to include K and L, since it is commands in ANSYS. What we want is MATLAB to export the A and N matrices to two seperate .txt files without the '[ ]' but with the ','. But can't seem to find a workaround for the symbolics.

**Export a Matrix in txt file,** If this is a 2-D matrix. The easiest thing to do is make sure it is in numpy format and use numpy.savetxt(). Link to documentation below. Export a matrix variable "losslessly" Learn more about matrix, export, text file MATLAB

**Export Files,** Exported SEER*Stat results are stored in an ASCII text data file. If you have not saved the matrix, the default path for the files will be the same as the user� How to save a matrix as text file?. Learn more about 1, fprintf, file io MATLAB

**help for mat2txt ,** Export Matrix to Text File. mat2txt , matrix(matrixname) saving(filename) [ title(text ) note(text) format(formatlist) replace append ]. Description. mat2txt exports a� Now I want to write this matrix in a text file named 'result.txt'. For this, I wrote the following code:: np.savetxt('result.txt', result1, fmt='%.2e') But it is giving me all the elements of the matrix in one row.

##### Comments

- it's not recommended to save numpy arrays as txt files. You can use this to save it as .npy binary file
- Thanks but I need it specifically in .txt format