wordcloudLayer: Wordcloud Layer

In cartography: Thematic Cartography

Wordcloud Layer

Description

Plot a word cloud adjusted to an sf object.

Usage

wordcloudLayer(
  x,
  txt,
  freq,
  max.words = NULL,
  cex.maxmin = c(1, 0.5),
  rot.per = 0.1,
  col = NULL,
  fittopol = FALSE,
  use.rank = FALSE,
  add = FALSE,
  breaks = NULL,
  method = "quantile",
  nclass = NULL
)

Arguments

x	an sf object, a simple feature collection (POLYGON or MULTIPOLYGON).
txt	labels variable.
freq	frequencies of txt.
max.words	Maximum number of words to be plotted. least frequent terms dropped
cex.maxmin	integer (for same size in all txt) or vector of length 2 indicating the range of the size of the words.
rot.per	proportion words with 90 degree rotation
col	color or vector of colors words from least to most frequent
fittopol	logical. If true would override rot.per for some elements of x
use.rank	logical. If true rank of frequencies is used instead of real frequencies.
add	whether to add the layer to an existing plot (TRUE) or not (FALSE)
breaks, method, nclass	additional arguments for adjusting the colors of txt, see choroLayer.

Author(s)

dieghernan, https://github.com/dieghernan/

References

Ian Fellows (2018). wordcloud: Word Clouds.

R package version 2.6. https://CRAN.R-project.org/package=wordcloud

See Also

choroLayer, legendChoro

Examples

library(sf) 
mtq <- st_read(system.file("gpkg/mtq.gpkg", package = "cartography"))
par(mar=c(0,0,0,0))
plot(st_geometry(mtq),
     col = "white",
     bg = "grey95",
     border = NA)
wordcloudLayer(
  x = mtq,
  txt = "LIBGEO",
  freq = "POP",
  add = TRUE,
  nclass = 5
)
legendChoro(
  title.txt = "Population",
  breaks = getBreaks(mtq$POP, nclass = 5, method = "quantile"),
  col = carto.pal("blue.pal", 5),
  nodata = FALSE
)

cartography documentation built on Sept. 14, 2023, 5:08 p.m.