ny.cumsum()和np.add.at() np.add.at()是将传入的数组中制定下标位置的元素加上指定的值. 将x中下标为0和为2的元素加上了3,这会改变传入的数组x,如下: >>> x=np.array([1,2,3,4])>>> np.add.at(x,[0,2],3)>>>x array([4, 2, 6, 4]) numpy.cumsum(a, axis=None, dtype=None,...
import numpy as np a = np.array([1, 2, 3]) print("【显示】a =", a) print("【执行】np.add.at(a,[0, 2],[10, 30])") np.add.at(a,[0, 2],[10, 30]) print("【显示】a =", a) A选项:a是一个一维数组 B选项:这个函数属于numpy库 C选项:这个函数共有三个参数 D选项:这个...
To understand np.add.at() in Python, it is a specialized NumPy function for unbuffered, in-place addition at specific array indices, including handling repeated indices. Like, np.add.at(arr, [index1, index2], [value1, value2]) adds values at the specified indices of arr. Meanwhile, np...
在TensorFlow中,可以使用tf.tensor_scatter_add函数来实现类似于np.add.at的功能。tf.tensor_scatter_add函数用于根据给定的索引和增量值将元素添加到张量中。 下面是将np.add.at语句转换为TensorFlow的示例代码: 代码语言:txt 复制 import tensorflow as tf # 创建一个空的目标张量 target = tf.zeros([5], dtyp...
np.add.at(arr,[0,1,2],1) print(arr) In the code above, we start by selecting the target indices as shown [0,1,2]. We then specify the value we wish to add to the arrays. The code above should return: 1 [345] Example #2 ...
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E. coli DNA polymerase I will add a nucleotide, copying the complementary strand, to the free 3′-OH group at a nick, at the same time its exonuclease activity removes the 5′-terminus. The enzyme then adds a nucleotide at the new 3′-OH and removes the new 5′-terminus. In this ...
This command allows you to add iTXt chunk to an image. For example the following command will add a chunk with keyword pizza and the value delicious to an image from the file input.png and then save it to output.png. The command can also be used to read data from stdin and output ...