How to save different numpy arrays with np.savetxt?
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I would like to save different numpy arrays with np.savetxt('xx.csv'). The np.arrays are (m,n) and I would like to add before the first column a list of index and above each line a list of header. Both lists consist of strings.
When I do multiple savetxt it erased the previous values.
I considered creating a huge matrix by merging every numpy arrays but doubt about the optimality.
Thanks for your help
python-3.x pandas numpy
add a comment |
I would like to save different numpy arrays with np.savetxt('xx.csv'). The np.arrays are (m,n) and I would like to add before the first column a list of index and above each line a list of header. Both lists consist of strings.
When I do multiple savetxt it erased the previous values.
I considered creating a huge matrix by merging every numpy arrays but doubt about the optimality.
Thanks for your help
python-3.x pandas numpy
I would like to have a blank line between each arrays
– Spenrose
Dec 27 '18 at 16:55
You need to open the file in append mode, and pass the opened file to thesavetxt
function. Write any spacer lines directly. If you givesavetxt
a filename, it creates a new file inwrite
mode, effectively deleting anything you wrote to that name before.
– hpaulj
Dec 27 '18 at 18:06
Nice, that works. thanks!
– Spenrose
Dec 28 '18 at 12:29
add a comment |
I would like to save different numpy arrays with np.savetxt('xx.csv'). The np.arrays are (m,n) and I would like to add before the first column a list of index and above each line a list of header. Both lists consist of strings.
When I do multiple savetxt it erased the previous values.
I considered creating a huge matrix by merging every numpy arrays but doubt about the optimality.
Thanks for your help
python-3.x pandas numpy
I would like to save different numpy arrays with np.savetxt('xx.csv'). The np.arrays are (m,n) and I would like to add before the first column a list of index and above each line a list of header. Both lists consist of strings.
When I do multiple savetxt it erased the previous values.
I considered creating a huge matrix by merging every numpy arrays but doubt about the optimality.
Thanks for your help
python-3.x pandas numpy
python-3.x pandas numpy
asked Dec 27 '18 at 16:42
Spenrose
255
255
I would like to have a blank line between each arrays
– Spenrose
Dec 27 '18 at 16:55
You need to open the file in append mode, and pass the opened file to thesavetxt
function. Write any spacer lines directly. If you givesavetxt
a filename, it creates a new file inwrite
mode, effectively deleting anything you wrote to that name before.
– hpaulj
Dec 27 '18 at 18:06
Nice, that works. thanks!
– Spenrose
Dec 28 '18 at 12:29
add a comment |
I would like to have a blank line between each arrays
– Spenrose
Dec 27 '18 at 16:55
You need to open the file in append mode, and pass the opened file to thesavetxt
function. Write any spacer lines directly. If you givesavetxt
a filename, it creates a new file inwrite
mode, effectively deleting anything you wrote to that name before.
– hpaulj
Dec 27 '18 at 18:06
Nice, that works. thanks!
– Spenrose
Dec 28 '18 at 12:29
I would like to have a blank line between each arrays
– Spenrose
Dec 27 '18 at 16:55
I would like to have a blank line between each arrays
– Spenrose
Dec 27 '18 at 16:55
You need to open the file in append mode, and pass the opened file to the
savetxt
function. Write any spacer lines directly. If you give savetxt
a filename, it creates a new file in write
mode, effectively deleting anything you wrote to that name before.– hpaulj
Dec 27 '18 at 18:06
You need to open the file in append mode, and pass the opened file to the
savetxt
function. Write any spacer lines directly. If you give savetxt
a filename, it creates a new file in write
mode, effectively deleting anything you wrote to that name before.– hpaulj
Dec 27 '18 at 18:06
Nice, that works. thanks!
– Spenrose
Dec 28 '18 at 12:29
Nice, that works. thanks!
– Spenrose
Dec 28 '18 at 12:29
add a comment |
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Ma jnZrZPw0ov9ygwdpMk2rtu,kD2Ap1RT
I would like to have a blank line between each arrays
– Spenrose
Dec 27 '18 at 16:55
You need to open the file in append mode, and pass the opened file to the
savetxt
function. Write any spacer lines directly. If you givesavetxt
a filename, it creates a new file inwrite
mode, effectively deleting anything you wrote to that name before.– hpaulj
Dec 27 '18 at 18:06
Nice, that works. thanks!
– Spenrose
Dec 28 '18 at 12:29