cism_map_interactive: interactive cism map
In joebrew/cism: The CISM R package

Generate simple interactive maps of variables. Meant to show one of 3 different kinds of maps: 1. A simple point map with no coloring 2. A point map with coloring by a categorical variable 3. A point map with coloring by a numeric variable This function is identical in input to cism_map, in all ways but three: 1. Rather than returning a ggplot2 plot, it returns a leaflet html widget. 2. It takes a spdf (regular SpatialPolygonsDataFrame) rather than a fspdf (fortified one). 3. It takes an optional popup argument.

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cism_map_interactive(lng, lat, x = NULL, popup = NULL, spdf = NULL,
  type = NULL, make_simple = TRUE, n_simple = 10, opacity = 0.5,
  point_size = 1)

`lng`	A numeric vector of longitude coordinates
`lat`	A numeric vector of latitude coordinates
`x`	A variable to be plotted. If `NULL` (the default), the locations only will be plotted
`popup`	A character vector, of identical lenggth to `lat` and `lng`, containing information to be viewed upon clicking
`spdf`	A spatial polygons dataframe
`type`	Either "numeric" or "factor". If `NULL` (the default), this function will try to guess the type of variable. Ignored if both `x` and `y` are supplied.
`make_simple`	Whether to simplify a categorical variable to fewer than `n_simplify` categories. Ignored unless `y` is `NULL` and `x` is categorical.
`n_simple`	The number of categories to simplify `x` to. Ignored unless `y` is `NULL` and `x` is categorical.