Handling outliers

An outlier is a data point that is far away and not similar to all the other data points in a sample:

Figure 7.1 – Outlier (marked in red)

Outliers can be detected using graphical (box plots) and not graphical methods, with the graphical methods being more intuitive. Let's talk about the non-graphical statistical methods:

• Tukey or percentiles
• Z-score
• Modified z-score

To show how Optimus can handle outliers, let's create a dataset with positive and negative extrema while considering all the data. Their values will be between 40 and -50:

df = op.create.dataframe(
         {"A":[1,2,3,45,6,-50,np.nan],
          "B":["Optimus","Bumblebee","Eject","Optimus",
               &quot...