Basic graphics

Plotting:

1. Load the nlme package and the make dataset Soybean available (code require(nlme); data(Soybean)). Explore this Soybean dataset.
2. Plot the relationship between weight and Time.
3. Explore the relationships between weight and Variety; weight and year.
4. In one plot, display the relationship between weight and Time for each Variety. Add a legend to this plot.
5. Save the plot as a pdf-file. Control if the plot has been saved on the approprate place.

Customizing a plot:

1. Plot weight against Time of the Soybean dataset.
2. Add a linear regression line for each Variety, use a different color for each Variety.
3. Add a legend.
4. Save the plot as a jpeg-file and check the file.

End exercises basic graphics

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Plotting with ggplot2

1. Make the dataset Soybean from package nlme available (code require(nlme); data(Soybean)).
2. Plot weight against Time, with a different color and character per variety.
3. Let year define the panels of the plot.
4. Add trendlines to the plot

End exercises ggplot2 graphics

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