Understanding the correlations in pairplots I was using pairplots and I'm stuck in understanding the pair wise relation between those features that have vertical or horizontal lines in the pair plots.
(Image source - source)

The correlation between say experience and age is pretty clear. I'm trying to interpret feature 'sex' with other features like 'age', 'education' etc. which shows horizontal/vertical lines at two distinct values. Also, help me understand the plot between 'wage' and 'experience', 'education' and 'age' etc.

the reason you're seeing horizontal or vertical lines is because "Sex" is variable which takes only two values "0" and "1". The horizontal dots at Sex==0 represent one gender and the dots at Sex==1 represent the other one.
You could set "Sex" as categorical datatype and use boxplots to observe wages, education distribution among different sexes.
Hope this helps!
