visualize the fertilizer data in the whole contiouse U.S.

map_us_fertilizer(data = "us_fertilizer_county", Year, Nutrient,
  Farm_Type = NULL, Input_Type = NULL, State = NULL, County = NULL,
  FIPSs = NULL, fun = NULL, annual_change = FALSE, level = "county",
  facet = NULL, trans = "identity", fill_var_type = NULL,
  viridis_palette = "viridis", viridis_direction = -1, viridis_end = 0.9,
  projection = NULL, parameters = NULL, orientation = NULL, xlim = NULL,
  ylim = NULL, add_north = FALSE, na.rm = TRUE, coord_fix_ratio = 1.3,
  map_theme = theme_map_fertilizer())

Arguments

data

the dataset to plot. default: us_fertilizer_county.

Year

the temporal coverage of the data to visualize. See link for available period.

Nutrient

the nutrient type of fertilizer from usfertilizer. Has to be N, P or both (NULL).

Farm_Type

the spatial source of fertilizer, should be farm, nonfarm or both.

Input_Type

the input source of fertilizer, should be manure, fertilizer.

State

the states that will show in the plot,default: all states.

County

the counties that will show in the plot, default: all counties.

FIPSs

the FIPS code for counties in USA.

fun

the function to process data, not done yet.

annual_change

to check if the data represent the annual change, default: FALSE.

level

the spatial resolution of map, should be county or state, default county.

facet

the facet to draw subplots.

trans

the transformation parameter for scale_fill_viridis.

fill_var_type

the type of data to visualize, default: Null.

viridis_palette

the palette type for viridis, options: “Viridis”,“magma”, “plasma”, "cividis", and “inferno.”

viridis_direction

Sets the order of colors in the scale. If 1, the default, colors are ordered from darkest to lightest. If -1, the order of colors is reversed.

viridis_end

The (corrected) hue in [0,1] at which the viridis colormap ends.

projection

the projection name for spatial projection.

parameters

parameters for map projection.

orientation

orientation for map projection.

xlim

x axis limits for map project.

ylim

y axis limits for map project.

add_north

logic. If TRUE, the ggplot object will include a states_shape df to draw north symbols and scale bars.

na.rm

How to deal with NA values. Default: TRUE.

coord_fix_ratio

the ratio for fixed coordinate system, default: 1.3.

map_theme

the map theme for dataset. Default: theme_map_fertilizer()

Value

a ggplot object.

See also

link(data_preparation)

Examples

require(usfertilizer) require(ggfertilizer) data("us_fertilizer_county") us_plot <- map_us_fertilizer( data = us_fertilizer_county, Year = 2010, Nutrient = "N", level = "county", Farm_Type = "farm", Input_Type = "Fertilizer", map_theme = theme_map_fertilizer(base_size = 12), viridis_palette = "inferno") us_plot