bubble_plot: Plot forecasts (with forecast skill)
In jonasbhend/myhelpers: Set of Tools for Often Performed Tasks

Description Usage Arguments Details Examples

Plot category forecasts with shading according to the dominant forecast category. Alternatively, point size reflective of forecast skill can be used. map_forecast plots the forecasts (with points sizes corresponding to forecast skill), bubble_plot also plots the legends.

map_forecast(lon, lat, x, color = NULL, breaks = NULL, skill = NULL,
  type = c("area", "edge"), plot = TRUE, ...)

bubble_plot(lon, lat, x, color = NULL, breaks = NULL, skill = NULL,
  type = "area", labels = NULL, ...)

skillLegend(args, legend.pos = "bottomleft", width = 0.2, height = 0.15,
  inset = 0.01, skill.levs = c(0.2, 0.5, 0.8), skill.col = "grey",
  byrow = TRUE, bbox = FALSE, font.main = par("font.main"),
  cex.main = par("cex.main"), cex = par("cex.lab"),
  font = par("font.lab"))

`lon`	longitudes of the forecast array
`lat`	latitutdes of forecast array
`x`	three-dimensional array of forecast probabilities (in percent) with dimensions forecast categories x lon x lat
`color`	matrix of color for breaks (see details)
`breaks`	matrix of breaks (see details)
`skill`	two or three-dimensional array of forecast skill with dimenisions lon x lat (2d) or forecast cat. x lon x lat (3d)
`type`	specify whether skill information should be represented by grid point area (`type = "area"`, the default) or grid point width and height (`type = "edge"`).
`plot`	logical, should plot be generated or just a dry run be performed to enquire parameters?
`...`	additional parameters passed to `image`
`labels`	Vector of category labels for legend (e.g. below normal, normal, above normal)
`args`	output from map_project. List with at least type and londiff and latdiff vectors
`legend.pos`	position of inset legend on plot
`width`	width of legend expressed as a fraction of the plot
`height`	height of legend expressed as a fraction
`inset`	additional spacing to offset legend from border
`skill.levs`	skill levels to be plotted
`skill.col`	colour for skill bubbles
`byrow`	logical, should skill labels be shown in one row?
`bbox`	logcial, should bounding box be added?
`font.main`	font of the legend header
`cex.main`	character expansion of legend header
`cex`	character expansion of legend text
`font`	font of legend text

color and breaks for the forecast are supplied as a matrix with the number of columns corresponding to the forecast categories. If no breaks are supplied, breaks are set automatically with the lowest probability at ceiling(1/n*10)*10. If category forecasts with unequal climatological expected frequency are used, breaks should be provided.

## Not run: 
tmp <- bubble_plot(lon, lat, fcst, skill=skill)
map(add=T) ## add in map for forecast
skillLegend(tmp) ## add in inset legend for skill

## End(Not run)