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Goal for Week 12: Various graphics presentations

Summary of new tools and commands.

• area plot lines with area below lines filled with colors
• pie show variables as fractional wedges of a circle
• bar plot values as rectangular bars
• bar3 plot values as rectangular bars in rows (3D)
• barh plot bars horizontally
• histogram bin values and plot as a bar chart
• histcounts return counts and bin values to create a histogram
• errorbar plot x vs y with provided error values
• scatter plot circles at indicated (x,y) locations
• polar plot lines from a circle center given angles and lengths
• compass plot arrows from a circle center given (x,y)
• rose bin angles around a circle (circular histogram)
• rand generate pseudo-random numbers from a uniform distribution
• randn generate pseudo-random numbers from a gaussian (normal) distribution
• rng control the seeds of the pseudo-random number generator.

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