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Deprecated - Plot graduated symbols

Source: R/mf_grad.R
mf_grad.Rd

This function is deprecated. Please use mf_map() with type = "grad" instead.

Plot graduated symbols based on quantitative data.

Usage

mf_grad(
  x,
  var,
  breaks = "quantile",
  nbreaks = 3,
  col,
  alpha = NULL,
  border,
  pch = 21,
  cex,
  lwd,
  extent = x,
  bg,
  expandBB = rep(0.04, 4),
  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_val_dec = ".",
  leg_val_big = "",
  leg_frame = FALSE,
  leg_adj = c(0, 0),
  leg_size = 1,
  leg_box_cex = c(1, 1),
  leg_fg,
  leg_bg,
  leg_frame_border,
  add = TRUE
)

Arguments

x

object of class sf

var

name(s) of the variable(s) to plot

breaks

either a numeric vector with the actual breaks, or a classification method name (see mf_get_breaks and Details)

nbreaks

number of classes

col

a color, hex code or color name given by colors

alpha

opacity, in the range 0,1

border

border color

pch

pch (point type) for symbols

cex

cex (point size) for symbols

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)). Use NA to avoid plotting the legend, use 'interactive' to choose the legend position by clicking on the map.

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_val_dec

decimal separator

leg_val_big

thousands separator

leg_frame

whether to add a frame to the legend (TRUE) or not (FALSE)

leg_adj

adjust the position of the legend in x and y directions

leg_size

size of the legend; 2 means two times bigger

leg_box_cex

width and height size expansion of boxes

leg_fg

color of the legend foreground

leg_bg

color of the legend background

leg_frame_border

border color of the legend frame

add

whether to add the layer to an existing plot (TRUE) or not (FALSE)

Value

x is (invisibly) returned.

Details

Breaks defined by a numeric vector or a classification method are left-closed: breaks defined by c(2, 5, 10, 15, 20) will be mapped as [2 - 5[, [5 - 10[, [10 - 15[, [15 - 20]. The "jenks" method is an exception and has to be right-closed. Jenks breaks computed as c(2, 5, 10, 15, 20) will be mapped as [2 - 5], ]5 - 10], ]10 - 15], ]15 - 20].

Examples

mtq <- mf_get_mtq()
mf_map(mtq)
mf_map(mtq, "POP", "grad", pch = 22)