Work book post DJ2

Visualizing data

Visualisation of data shown by:

Static infographics ( print and web)

Standalone charts / charts as stories

Interactive charts

Interactive data visualisation

Scrolling stories / scrollitelling

Interactive tools and dashboards

Animation

Coursework 1 : 80% 500 word feature with an infographic

Coursework 2 : 20 % punctuality and attendance

Introduction to Lynda.com- https://www.lynda.com

Important to know what subject you are going to cover and how you are going to show it

Facts , stats and lies

11/02/18

Visualising data

Don’t just publish raw data

TELL A STORY!

DATA TERMINOLOGY

Datapoint  –one  piece of data – this apple costs 20p

Dataset  –a  whole  array of data -Cost  of all the fruit +  veg in the supermarket

Variable  –one  dimension  of the dataset- Cost  of apples in the supermarket

Raw data – unprocessed, detailed , has not been manipulated or analysed

Aggregated data – grouped or combined from several measurements

AVERAGE –MEAN –MEDIAN  –MODE

AVERAGE  -(ARITHMETIC)   MEAN -Add all and  divide by number of  entries

MEDIAN -The  middle number  or, if even number,  the sum of the two middle  divided by 2

MODE- Most  frequent or  common value.

Example

Quiz  results of nine  students: 91, 84,  56, 90, 70, 65, 90,  92, and 30

FIND  THE AVERAGE  -(ARITHMETIC) MEAN:    Add all and divide by  number of entries 74

FIND  THE MEDIAN:  The middle number  or, if even number,  the sum of the two middle  divided by 2= 84

FIND  THE MODE:  Most frequent  or common value = 90

Salaries  in a finance  department:

1. £38,000

2. £40,000

3. £40,000

4. £40,000

5. £44,000

6. £50,000

7.£55,000

8. £59,000

9. £68,000

10. £88,000 (Very  long serving accountant)

11. £88,000 (Very  long serving accountant)

12. £120,000 (CFO)

Different stories

Total:  730,000

• Average(Total/12): £60,833

• Median(Middle:  50k+55K/2): £52,500

• Mode(Most common): £40,000

Per cent v percentage point

20% of adults are smokers

The number of smokers increased by 5%

21% of adults are smokers

The number of smokers increased by 5 percentage points

25% of adults are smokers

“All  statistics  are a summary  of a more complicated  truth”

Tim  Harford

Check the data

Always make sure that you are aware of context of the data