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Scatterplots
What are Scatterplots?
According to Hamilton (2013), Scatterplots belong to a broad family called twoway graphs. The Stata's form for the basic scatterplot is as below:
graph twoway scatter y x
where y is the vertical or y-axis variable AND x is the horizontal or x-axis one.
A twoway graph has points that show the relationship between two sets of data. A Scatter (XY) Plot has points that show the relationship between two sets of data. On this graph, each individual in the data appears as a point.
Why are Scatterplots important?
Scatterplots in Practice
About Education (2015) advises that in the scatterplot, each individual in the data appears as a point on the graph.
• Always plot the explanatory variable (x) on the x axis and the response variable on the y axis.
• Can use colors or symbols to see the effect of a categorical variable.
YOUTUBE WATCHING ACTIVITY
1.1 Scatter Plot with Fit Line (Excluding Equation) - 9'30
posted by how2stats @ https://www.youtube.com/watch?v=xIudo4G_6zU
1.2 Scatter Plot - SPSS (part 1) - 4'03
1.3 Scatter Plot - SPSS (part 2) - 4'03
https://www.youtube.com/watch?v=803YCYA2AoQ
References
About Education (n.d).
Hamilton, L.C. (2013). Statistics with STATA: Updated for Version 12.Boston, MA: BOOKS/COLE CENGAGE Learning
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