randrange(start, stop)
only takes integer arguments. So how would I get a random number between two float values?
516
votes
5 Answers
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88
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81
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random.uniform(a, b)
appears to be what your looking for. From the docs:
Return a random floating point number N such that a <= N <= b for a <= b and b <= N <= a for b < a.
See here.
6
votes
Most commonly, you'd use:
import random
random.uniform(a, b) # range [a, b) or [a, b] depending on floating-point rounding
Python provides other distributions if you need.
If you have numpy
imported already, you can used its equivalent:
import numpy as np
np.random.uniform(a, b) # range [a, b)
Again, if you need another distribution, numpy
provides the same distributions as python, as well as many additional ones.
1
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From my experience dealing with python, I can only say that the random function can help in generating random float numbers. Take the example below;
import random
# Random float number between range 15.5 to 80.5
print(random.uniform(15.5, 80.5))
# between 10 and 100
print(random.uniform(10, 100))
The random.uniform() function returns a random floating-point number between a given range in Python
The two sets of code generates random float numbers. You can try experimenting with it to give you what you want.
np.random.uniform(start, stop)
ornp.random.uniform(start, stop, samples)
if you wanted multiple samples. Otherwise below answers are best. – sachinruk