How can I generate random numbers and assign them to variables in python?
Suppose I want the variables a_1, a_2, a_3, a_4 to be random numbers from the uniform distribution U(0,100). I could write
import random a_1 = random.uniform(0,100) a_2 = random.uniform(0,100) a_3 = random.uniform(0,100) a_4 = random.uniform(0,100)
But I was wondering if there is a more efficient way to do this. I tried the following,
import random for i in range(4): a_i = random.uniform(1,100) print(a_i)
However, this did not work. For example, when I call a_1 later on, it says a_1 is not defined. How can I fix this?
Put the random values into a list and then access members by index:
>>> import random >>> a = [random.uniform(1,100) for _ in range(4)] >>> a [71.4615087249735, 19.04308860149112, 40.278774122696014, 69.18947997939686] >>> a 71.4615087249735 >>> a 40.278774122696014
Unless you have a really, really good reason, defining variables dynamically is kind of hard to justify.
If you do not wish to use a list, you can use the unpack functionality
import random up, down, strange, charm = [random.uniform(1,100) for _ in range(4)]