EDA

EDA

Data Granularity - Levels in the data. ie Time, Years, Months, Weeks, Days, Hours
Consistency - Dates 01/01/2000 or 1/1/00
Corruption and Accuracy - System generated problems / Human errors / Out of date
Data Duplication
Missing Data
SOLUTIONS
1. capitalisation (transform all)
2. Combine or concatenations of variables
3. Careful use of fomats
4. Removals of unwanted characters
  1. Exclusion
5. consistent units
6. Add system checks
7. Reduce the variable types
Data Types / Model Roles
Attachments:
- Model Roles
Categorise Data
1. Discrete Data
  1. Gender
  2. Make of car
  3. Number of cars
  4. Data that can only take certain values.
2. Continuous Data
  1. Data that can take any value (within a range)
  2. Bank balances
  3. Measurements
  4. Dates
Data Levels
Attachments:
- Data Source Levels

Resource summary

	Created by Steve Hiscock over 11 years ago