Solution: Python loop using “_”

Development | Programming languages
Description

I have written a few python script. But this is my first time of seeing expressions like "for _ in range(100000)". Can anyone point me a direction regarding this? I didn't find it from google. What does "_" mean? no parameter is needed, and we can use this merely to say loop for 100000 times?


from numpy import random
random.seed(0)

totals = {20:0, 30:0, 40:0, 50:0, 60:0, 70:0}
purchases = {20:0, 30:0, 40:0, 50:0, 60:0, 70:0}
totalPurchases = 0
for _ in range(100000):
    ageDecade = random.choice([20, 30, 40, 50, 60, 70])
    purchaseProbability = float(ageDecade) / 100.0
    totals[ageDecade] += 1
    if (random.random() < purchaseProbability):
        totalPurchases += 1
        purchases[ageDecade] += 1
Attachments
No attachments
Solutions
Description
It's just an identifier, by convention used to indicate that the variable is unused
on September 05th, 2018 (9:18 pm)
All coments
This solution has not been commented yet.
You must sign in to comment!! LOGIN
We use cookies to give you the best possible experience on our site. By continuing to use the site you agree to our use of cookies. Find out more Accept