Week 3: Relationships. Day 15: Multivariate.

A parallel coordinates visualization showing relationship between smoking and sperm concentration for a multivariate dataset. Blue line indicating an altered diagnosis and white line indicating normal diagnosis.



  • Age at the time of analysis:- between 18 - 36 years old.
  • Childhood Diseases:- 0: yes, 1: no
  • Accident or serious trauma:- 0: yes, 1: no
  • Surgical Intervention:- 0: yes, 1: no
  • High fevers in last year:- less than 3 months ago: -1, more than 3 months ago: 0, no: 1
  • Alcohol:- several times a day: 0.2, everyday: 0.4, several times a week: 0.6, once a week: 0.8, hardly or never: 1
  • Smoking:- never: -1, occasional: 0, daily: 1
  • Number of hours spent sitting:- 0,1