StatWrap

StatWrap#

StatWrap is a Python package I’ve written for this course. Find the documentation here.

I simplify other packages and use function names that match the conventions of [FPP07] or Google Sheets to make it easier to switch from the book to coding. Other packages use defaults that might clash with the book (e.g. SD vs SD+). Using StatWrap prevents accidentally wading into those complications.

If you pursue more advanced study of statistics or related fields, you will never use StatWrap again, but it’s a good place to start if you already find coding to be overwhelming enough.

Using StatWrap#

StatWrap is not installed in Google Colab by default. To install and use statwrap, run !pip install statwrap. This will produce a lot of output you can ignore. Then you can import the package like in the code below.


!pip install statwrap
import statwrap
%use_fpp
%use_sheets

Here’s what the lines above do.

  1. This installs statwrap. This isn’t permanent on Google Colab, so you’ll have to run this for every new session.

  2. This imports statwrap.

  3. This loads the FPP module, which includes functions likes sd to calculate the standard deviation of a list of numbers using the syntax sd(1,2,3). You don’t have to write statwrap.fpp.sd(1,2,3) if you run this line.

  4. Like the third line, this loads the Google Sheets module. This module includes functions like stdevp to match the STDEVP function in Google Sheets and Excel.

sd(1, 2, 3)

np.float64(0.816496580927726)

stdevp(1, 2, 3)

np.float64(0.816496580927726)

Example Catalog#

Below are some minimal working examples that use StatWrap.

  1. Histograms

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