Graphical presentation of summaries for a continuous variable by more
than one categorical variable
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Box Plots and Line Chart for Median Household Income by Region and Province, Slides of Economic statistics
Instructions on how to create box plots and a line chart for summarizing median household income by region and province using statistical software. The data set includes annual income for households in different provinces and regions, with a focus on those below the 90th percentile.
Typology: Slides
2011/2012
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Graphical presentation of summaries for a continuous variable by more
than one categorical variable
Objectives
At the end of this session you will
• Be able to produce box plots for a continuous
variable defined by the levels of a categorical
variable
What is wrong with this graphical representation
N = 2362 3464 1465 2121 758 1588 596 1354
PROVINCE
Punjab Sindh NWFP Bolochistan
annual income
REGION
Urban
Rural
The skewed distribution of income
- What about presenting the results only for households below the 90 th
percentile?
USE ALL.
COMPUTE filter_$=(income<120000).
FILTER BY filter_$.
EXECUTE.
EXAMINE
VARIABLES=income BY province BY region
/PLOT=BOXPLOT/STATISTICS=NONE
/NOTOTAL
/MISSING=REPORT.
A line chart for summary statistics
GRAPH
/LINE(MULTIPLE)MED(income) BY region BY province
/MISSING=REPORT.
Median household income
by region and province
PIHS 98 - data for training
REGION
Urban Rural
70000
60000
50000
40000
30000
PROVINCE
Punjab Sindh NWFP Bolochistan