Remove irrelavant information from Others Options, by separate one column into two columns. We will apply this process to columns:
- Q1 - Which Title Best Fits your Current Role?.1
- Q5 - Favorite Programming Language
- Q8 - If you were to look for a new job today, what would be the most important thing to you?
Remove columns lack of information
Separate salary column to minimum and maximum columns
Relace letter k and character - to empty
Make another column by calculating the average of minimum and maximum columns