DATA ANALYTICS
DATA COLLECTION = BIG DATA
2 TYPE OF DATA
PRIMARY DATA
SECONDARY DATA
STRUCTURING OF DATA
*Unstructured Data - Images, audious,essays
*Semi-structured Data - Partially organised (not in format)
*Structed Data - Organised in table form
TYPE OF DATA VALUES
*Quantitative - Numerical ( Called ' Discrete' if whole number)
*Qualitative - Categorical : (eg: No of children)
* Binary - 2 categories
*Ordinary - Ordered category
*Date/Time
* Identity
REMARK:HOWEVER,THIS COURSE IS ONLY FOCUS ON STRUCTURED OF DATA
TYPES OF STRUCTURE DATA
TABLE(CSV,XLS,GSHEET)
4 TYPES OF DATA ANALYTICS
Descriptive Analytics - What happened? - Output in the form of graph/chart
Diagnostics Analytics - Why did it happen? - Insight
Prescriptive Analytics - What action should be taken? - Insight
Predictive Analytics - What will happen? - Output in the form of graph/chart
So what's the difference between a Data Analyst and a Data Scientist?
Data Scientists will do all 4 types of DA
Data Analysts only do Descriptive Analytics & Diagnostic Analytics