Calculating the percentage different between integers in a list

Avatar for JZA
Written by
2 weeks ago
Topics: Development, python

For people that have been doing coding on the market, this might be a common task that they have to do to calculate the behavior of the market. Having a percentage between one element and the next help us see whenever we can do backtrades strategies. So for that this function seems important. One of the challenges I have found is that in Python lists are not unmutable, which means that they could change order and that can break our dependency on it. For that Python has a nifty function called zip().

If we go to the python documentation, zip is:

Make an iterator that aggregates elements from each of the iterables.

Returns an iterator of tuples, where the i-th tuple contains the i-th element from each of the argument sequences or iterables. The iterator stops when the shortest input iterable is exhausted. With a single iterable argument, it returns an iterator of 1-tuples. With no arguments, it returns an empty iterator.

So here is a function with a sample list:

prices = [30.4, 32.5, 31.7, 31.2, 32.7, 34.1, 35.8, 37.8, 36.3, 36.3, 35.6]

for a, b in zip(prices[::1], prices[1::1]):

print 100 * (b - a) / a

$ 0.00
Avatar for JZA
Written by
2 weeks ago
Topics: Development, python
Enjoyed this article?  Earn Bitcoin Cash by sharing it! Explain
...and you will also help the author collect more tips.

Comments

About us Rules What is Bitcoin Cash? Roadmap Affiliate program Get sponsored Self-host
hello@read.cash (PGP key) Reddit