![]() ![]() ![]() Coordinates: Coordinates defines the physical mapping of the data.It can be used to quite many puposes incluing translation between categories and colors and defining axis and limits. Scales: Scales imply a specific interpretation of values as e.g. continuous or discrete.Stats are commonly used when the data input does not include the format you wish to plot, e.g. if you plot directly from a dataset where group percentages are not pre-calculated. Statistics: Statistics (stats) can be used for transformation of the original data into other measures e.g. from count to percentages.Geometries: The geometry is used to define how the data should be interpreted, e.g. as point, lines or bars.It is used to describe which part of your data input that is used for what e.g. which variable is your x and y axis. Mapping of data: The mapping of data is defined using the function aes(). ![]() Data: The data input for your plot can be in differnt formats, either as a full dataset, where each row is an observation or as summerized data, e.g. counts or percentages for different groups.In the following the different layers and their content is discribed breifely and examples will follow afterwards. You can (in most cases) add several layers of the same type, e.g. two different geometries can be added and will create one plot with two types of graphs inside. The differnt layers will add an extra layer of information to the plot. A ggplot consists of different layers that can be combined to a graph. ![]()
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