Python：如何用一系列数字填充数组？
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Python: How do I fill an array with a range of numbers?
提问by hpnk85
So I have an array of 100 elements:
所以我有一个包含 100 个元素的数组：
a = np.empty(100)
How do I fill it with a range of numbers? I want something like this:
我如何用一系列数字填充它？我想要这样的东西：
b = a.fill(np.arange(1, 4, 0.25))
So I want it to keep filling awith that values of that range on and on until it reaches the size of it
所以我希望它不断填充a该范围的值，直到达到它的大小
Thanks
谢谢
回答by unutbu
np.putplaces values from binto aat the target indices, ind. If vis shorter than ind, its values are repeated as necessary:
np.put将来自binto 的值放置a在目标索引处ind。如果v短于ind，则根据需要重复其值：
import numpy as np
a = np.empty(100)
b = np.arange(1, 4, 0.25)
ind = np.arange(len(a))
np.put(a, ind, b)
print(a)
yields
产量
[ 1. 1.25 1.5 1.75 2. 2.25 2.5 2.75 3. 3.25 3.5 3.75
1. 1.25 1.5 1.75 2. 2.25 2.5 2.75 3. 3.25 3.5 3.75
1. 1.25 1.5 1.75 2. 2.25 2.5 2.75 3. 3.25 3.5 3.75
1. 1.25 1.5 1.75 2. 2.25 2.5 2.75 3. 3.25 3.5 3.75
1. 1.25 1.5 1.75 2. 2.25 2.5 2.75 3. 3.25 3.5 3.75
1. 1.25 1.5 1.75 2. 2.25 2.5 2.75 3. 3.25 3.5 3.75
1. 1.25 1.5 1.75 2. 2.25 2.5 2.75 3. 3.25 3.5 3.75
1. 1.25 1.5 1.75 2. 2.25 2.5 2.75 3. 3.25 3.5 3.75
1. 1.25 1.5 1.75]
回答by Ravi Sankar Raju
updating solution to fit description
更新解决方案以适应描述
a = np.empty(100)
filler = np.arange(1,4,0.25)
index = np.arange(a.size)
np.put(a,index,filler)
