Plot proportional symbols.
mf_prop(
x,
var,
inches = 0.3,
val_max,
lwd_max = 20,
symbol = "circle",
col = "tomato4",
border,
lwd = 0.7,
leg_pos = mf_get_leg_pos(x),
leg_title = var,
leg_title_cex = 0.8,
leg_val_cex = 0.6,
leg_val_rnd = 0,
leg_frame = FALSE,
add = TRUE
)Arguments
- x
object of class
sf- var
name(s) of the variable(s) to plot
- inches
size of the biggest symbol (radius for circles, half width for squares) in inches.
- val_max
maximum value used for proportional symbols
- lwd_max
line width of the largest line
- symbol
type of symbols, 'circle' or 'square'
- col
color
- border
border color
- lwd
border width
- leg_pos
position of the legend, one of 'topleft', 'top','topright', 'right', 'bottomright', 'bottom', 'bottomleft', 'left' or a vector of two coordinates in map units (c(x, y)). If leg_pos = NA then the legend is not plotted. If leg_pos = 'interactive' click onthe map to choose the legend position.
- leg_title
legend title
- leg_title_cex
size of the legend title
- leg_val_cex
size of the values in the legend
- leg_val_rnd
number of decimal places of the values in the legend
- leg_frame
whether to add a frame to the legend (TRUE) or not (FALSE)
- add
whether to add the layer to an existing plot (TRUE) or not (FALSE)
Value
x is (invisibly) returned.
Examples
mtq <- mf_get_mtq()
mf_map(mtq)
mf_prop(mtq, "POP")
mf_map(mtq)
mf_prop(
x = mtq, var = "POP", inches = .4, symbol = "circle", val_max = 90000,
col = "tomato1", border = "blue", lwd = 1,
leg_pos = "right", leg_title = "Population",
leg_title_cex = 1, leg_val_cex = .8, leg_val_rnd = 0,
leg_frame = TRUE, add = TRUE
)
