How to concatenate several strings from a numpy array as a single string?

Question

I have the following array of strings as a numpy array:

filepaths = np.array(['Padma','Meghna','Jamuna'])

And I want to concatenate so that I should get the following :

 Padma-Meghna-Jamuna

I am doing the following, but not getting as expected:

 np.array([np.core.defchararray.join('-',a) for a in filepaths])


 array(['P-a-d-m-a', 'M-e-g-h-n-a', 'J-a-m-u-n-a'], 
  dtype='|S11')

Some hint would be helpful here

hpaulj · Accepted Answer · 2017-01-19 20:14:18Z

6

The defchararray.join operates on each element of the array, individually.

In [94]: '-'.join('padma')
Out[94]: 'p-a-d-m-a'

Just treat your array like a list:

In [93]: '-'.join(np.array(['Padma','Meghna','Jamuna']))
Out[93]: 'Padma-Meghna-Jamuna'

answered Jan 19, 2017 at 19:56

hpaulj

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