Create a vizid Object — init

Create a vizid Object

Usage

init_vizid(data, roles = init_roles(), components = init_components())

Arguments

data: A data frame with infectious disease data.
roles: An object produced by init_roles, which maps variable roles to specific names of variables in data and/or the return values of data.
components: An object produced by init_components, which stores ggplot2 components (e.g., the results of functions like geom_line() and scales_x_continuous()) that would be combined into a plot if the vizid object is passed to the plot().

Value

A data frame of class "vizid" that knows what roles its variables will plot in a visualization. These roles are stored in attributes. These attributes also contains an initially empty list, plot_components, that can be filled up with ggplot2 plot components that can be used when the plot function is called.