Function for converting ratios (Python [2.7])

Question

I am trying to create a function that goes like this:

def ratio_transform(n, h, nh):
     ...

In other words, your fraction is n / h and the returned value is x / nh

For example, I want to convert 5 / 100 to x / 1000 (n is 5, h is 100 and nh is 1000)

My code goes:

def ratio_transform(n, h, nh):
    return (n / h) * nh

But ratio_transform(5, 100, 1000) always returns 0.0, when it should return 0.5

Is it a logic error, or a data type error?

Somewhat related: http://stackoverflow.com/q/183853/5647260 – Andrew Li Jan 02 '17 at 18:06 — Andrew Li, Jan 02 '17 at 18:06

score 1 · Answer 1 · answered Jan 02 '17 at 18:06

1

def ratio_transform(n, h, nh):
    return (n / float(h)) * nh

answered Jan 02 '17 at 18:06

Miloslav Číž

When I call ratio_transform(5, 100, 1000), it returns 50.0 – R Harrington Jan 03 '17 at 08:07

1 Answers1