如何使用随机 function 创建一个数组，其总和为 1 在 python 中使用 nympy？

Question

Working on an assignment which requires me to create an array with random numbers whose sum is 1.

The actual problem statement looks something like this:

get_initial_weights

This function should have one parameter, an integer m. This function should return a matrix with 1
row and m columns containing random values, each between zero and one. The sum of these m
values should be equal to one.

Answer 1

You can use random.random to create your matrix of size (1,m) , and then divide it by the sum of the array to normalize the sum to 1.

t = np.random.random((1,m))
t = t / t.sum()