Making three dimension numpy from two dimention list

Question

I want to make three dimension np (50, 917, 100) finally.

Now,I have variable sentence which has two dimention less than 917.

ex)

(812,100),(917,100),(250,100),(240,100),(560,100),,,,

So, I want to stack these variables to np variable and 0 padding where shorter..

res = np.zeros((50,917,100)) # Initialize the empty numpy
print(res.shape)

for sentence in all_sentences: # len(all_sentences) = 50   
   res.append(sentence)  #but it is wrong.

How can I do this ???

jdworzans · Accepted Answer · 2021-12-07 09:59:46Z

2

appending would mean you stack those after your array of zeros. What you want to do instead is overwriting the respective parts in your initialized array:

for i, sentence in enumerate(all_sentences):
    res[i,:sentence.shape[0],:] = sentence

edited Dec 7, 2021 at 9:59

jdworzans

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answered Dec 7, 2021 at 9:50

Eumel

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1 Comment

whitebear Over a year ago

Thank you basic idea of res[i,:sentence.shape[0],:] could be work for me in this case.

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