Post on 22-Dec-2015
Graphing
When to Graph Your Data
When "a picture could tell billions of words" To impress people
Dramatize a research finding Some people think visually To emphasize something that numbers can't
communicate well
Scatter Plot - Raw Data
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Number of Drinks
Number of Errors
Histogram - Raw Data
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Response Scale Value
Number of Responses
Should not have gaps
Column Graph - Categorical Independent Variable
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Psychology CivilEngineering
Physics
Major
Importance
SexDrugsRock-n-Roll
Line Graph - All Kinds of Data
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Melbourne Palm Bay Kissimmee
City
Number/Square Block
Air BoatsRednecks
Circle/Pie Graph - Category Proportions
48%
25%
12%
15% PsychologyBusinessCommunicationsScience Education
Errors
3-D Color Busy
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Psychology CivilEngineering
Physics
SexDrugsRock-n-Roll
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Psychology CivilEngineering
Physics
Major
Importance
Sex
Drugs
Rock-n-Roll
Where Graphs Come From
Data analysis programs SPSS (Statistical Package for the Social
Sciences) Dedicated graphing software
DeltaGraph Spreadsheets Graphing utilities in other programs
Word, PowerPoint Called “chart”
Not all Figures are Graphs
Charts Communicate concepts pictorially Organizational chart Process chart (next slide)
Drawing Photographs
Chart
Chart Area
Plot Area
Parts
Legend
X (Category) axis
Y (Value) axis
Tick Mark
Tick Mark Label/ Categ Label Categ Axis Title
Value Axis Title
Data series
Symbol
Line
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Melbourne Palm Bay Kissimmee
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Number/Square Block
Air BoatsRednecks
Y axis scale