2024-09-27 00:22:35 发布
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我最近发现了numpy及其在矩阵方面的实用性。有一件事仍然困扰着我。如何用所需值替换矩阵中的特定值。我试过了>
matrix1 = np.zeros([10,10]) replacewith = 1 atposition = np.array(5,5) matrix1[atposition] = replacewith
所以我要做的是用1替换中间的0。 谢谢您!你知道吗
import numpy as np matrix1 = np.zeros([10,10]) replacewith = 1 atposition = (5,5) matrix1[atposition] = replacewith print matrix1
输出:
[[ 0. 0. 0. 0. 0. 0. 0. 0. 0. 0.] [ 0. 0. 0. 0. 0. 0. 0. 0. 0. 0.] [ 0. 0. 0. 0. 0. 0. 0. 0. 0. 0.] [ 0. 0. 0. 0. 0. 0. 0. 0. 0. 0.] [ 0. 0. 0. 0. 0. 0. 0. 0. 0. 0.] [ 0. 0. 0. 0. 0. 1. 0. 0. 0. 0.] [ 0. 0. 0. 0. 0. 0. 0. 0. 0. 0.] [ 0. 0. 0. 0. 0. 0. 0. 0. 0. 0.] [ 0. 0. 0. 0. 0. 0. 0. 0. 0. 0.] [ 0. 0. 0. 0. 0. 0. 0. 0. 0. 0.]]
输出:
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