Indexing da NumPy Arrays

A girmi kaiyanci nafta.

Index nafta nafta nafta a zai kaiyanci nafta.

Anu a girmi kaiyanci kaiyanci ndima nafta, a zai kaiyanci ndima nafta.

Index nafta NumPy nafta a zai 0 kaiyanci, anu a girmi kaiyanci a zai 0, a girmi kaiyanci a zai 1, kaiyanci.

Macegi

A girmi kaiyanci 1st element from the following array:

import numpy as np
arr = np.array([1, 2, 3, 4])
print(arr[0])

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Macegi

A girmi kaiyanci 2nd element from the following array:

import numpy as np
arr = np.array([1, 2, 3, 4])
print(arr[1])

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Macegi

A girmi kaiyanci 3rd and 4th elements from the following array and add them:

import numpy as np
arr = np.array([1, 2, 3, 4])
print(arr[2] + arr[3])

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A girmi kaiyanci 2-D nafta

A girmi kaiyanci kaiyanci nafta, anu a girmi kaiyanci kai ndima nafta, a zai kaiyanci ndima kai ndima.

Macegi

A girmi kaiyanci 2nd element on 1st dim:

import numpy as np
arr = np.array([[1,2,3,4,5], [6,7,8,9,10]])
print('2nd element on 1st dim: ', arr[0, 1])

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A girmi kaiyanci 5th element on 2nd dim:

import numpy as np
arr = np.array([[1,2,3,4,5], [6,7,8,9,10]])
print('5th element on 2nd dim: ', arr[1, 4])

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A girmi kaiyanci 3-D nafta

A girmi kaiyanci 3-D nafta, anu a girmi kaiyanci kai ndima nafta, a zai kaiyanci ndima kai ndima.

Macegi

Gudanar gida na farko na ikon biyu na ikon guda:

import numpy as np
arr = np.array([[[1, 2, 3], [4, 5, 6]], [[7, 8, 9], [10, 11, 12]]])
print(arr[0, 1, 2])

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Tatawurin Shafi

arr[0, 1, 2] Ina cikata Gida: 6.

Kurmi:

gida na farko wanda ke da gudun gida na:

[[1, 2, 3], [4, 5, 6]]

sai:

[[7, 8, 9], [10, 11, 12]]

wannan saboda a nuna: 0kuma a gana gida na farko:

[[1, 2, 3], [4, 5, 6]]

gida na biyu wanda ke da gudun gida na:

[1, 2, 3]

sai:

[4, 5, 6]

wannan saboda a nuna: 1kuma a gana gida na biyu:

[4, 5, 6]

gida na uku wanda ke da gudun gida na:

4
5
6

wannan saboda a nuna: 2kuma a gana ta gaba da na samun guda na:

6

Ikon Dutsi

A samu ikon daga farko daga farkon kowane

Macegi

Ina cikata akirin guda daga ikon daga 2nd dim:

import numpy as np
arr = np.array([[1,2,3,4,5], [6,7,8,9,10]])
print('Akirin guda daga 2nd dim: ', arr[1, -1])

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