Statistics Module Python Tutorial




Since Python is such a popular programming language for data analysis, it only makes sense that it comes with a statistics module. Sadly, this is not available in Python 2.7, but that's okay because we're in Python 3!

The statistics module comes with an assortment of goodies: Mean, median, mode, standard deviation, and variance.

These are all fairly straight forward to use, here and some simple examples:

 
import statistics

example_list = [5,2,5,6,1,2,6,7,2,6,3,5,5]

x = statistics.mean(example_list)
print(x)

y = statistics.median(example_list)
print(y)

z = statistics.mode(example_list)
print(z)

a = statistics.stdev(example_list)
print(a)

b = statistics.variance(example_list)
print(b)

We've not gone much over importing things in Python, so I've kept this basic. As you can see, you just simply pass a list through the module's function, and you're output is the answer. Here, we're saving the output to a variable, and then we're just printing out the variable. In normal circumstances, you'd probably continue doing things with it.

Here, we've seen how simple importing and using modules can be, but there are a lot of other options when it comes to how we import things.

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