R GraphicsLesson 25Free preview

R Line

This lesson is part of R · All levels

Summary

This lesson reviews the creation of line graphs to analyze trends and time series data. Developers are taught how to create a single line graph with plot(..., type="l"), add secondary lines using the lines() function, as well as set the line thickness (lwd) and break-line style (lty).

Key points

Line diagrams are ideal for observing changes in data over time.
The 'lines(x, y)' function adds additional lines to an existing plot without creating a new plot window
The 'lwd' argument (line width) determines the degree of line thickness
The 'lty' argument (line type) specifies the line style (e.g.: 1=solid, 2=dashed, 3=dotted)

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