Skills - Data Presentation Flashcards
Scatter Graph
Positives
Easy and quick
Representative
Line of best fit (clear +ve correlation)
Scatter Graph
Negatives
Human error possible (calculating mean ave.)
|_> produce anomalies
Eg. Site 1-2 0.04-0.42 m/s
Eg. Site 4-5 0.68-0.39 m/s
|_> Mill Pond (@5)
Scatter Graph
What measure
Velocity
Proportional Symbols
What measure
Pebble/Clast size
Proportional Symbols
Positives
Can be superimposed
|_> spacial context
Easy
Quick
Proportional Symbols
Negatives
Some symbols overlap (pragmatic sampling methods of sites)
|> 1-3 clustered (1.5km)
||> analysis difficult
If insufficient numbe rof categories (no difference in symbol size)
|_> not representative
Categories WERE large due to large data collection
Pie Charts
What measure
Pebble Shape
Pie Charts
Positives
Easy
Quick (new tech. Eg. Edexcel)
Included tabulated results alongside image
|_> eg. Site 6 10 Rounded
Can superimpose for spacial context
Pie Charts
Negative
Bold colours detract from shown
3D can confuses
Room for human error
Kite Diagram
What measure
Pebble shape
Kite Diagram
Positives
Kite Diagram
Clear
Representative
Comparable
Kite Diagram
Negatives
Time consuming
Human error (difficult to achieve)
Stacked Bar Chart
What measure
Pebble Shape
Stacked Bar Chart
Positive
Cumulative breakdown (representative)
Clear (bars all same height)
|_> 5 examples each site (highly comparable)
Bar Chart
What measure
Pebble Shape
