sdm_leaflet.RdCreate a Leaflet map with the results of an SDM analysis. This map can be explored interactively in the viewer, so its possible to have a better comprehension of the outcomes of your SDM.
sdm_leaflet( sdm, mode = "bin", pts = NULL, pal = NULL, layernames = NULL, crs = "standard", cluster = FALSE ) # S4 method for Raster sdm_leaflet( sdm, mode = "bin", pts = NULL, pal = NULL, layernames = NULL, crs = "standard", cluster = FALSE ) # S4 method for data.frame sdm_leaflet( sdm, mode = "bin", pts = NULL, pal = NULL, layernames = NULL, crs = "standard", cluster = FALSE )
| sdm | The SDM/ENM result (or any other spatial analysis result). Can be either a data.frame (for a single SDM result) or in the Raster* format (multiple layers allowed). Binary maps should have just two values (0 for absence and 1 for presence). Difference maps ("quad" mode, see below) should have 4 values: 0 for unsuitable areas, 1 for areas that were lost, 2 for areas where there was gain of area and 3 for areas where suitability was mantained. Its easy to produce such a map from binary maps. Just multiply the future condition binary map by 2 and sum the current map. |
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| mode | A character string indicating the mode of ploting. Should be one of "bin" (used for thresholded binary SDMs), "quad" (used for ploting difference maps between a binary reference map and a future one) or "continuous" (used for plotting continuous scale data). |
| pts | A data frame containing the presence or presence/absence points (optional). The first column should be longitude (x) and the sencond latitude (y). In the case of presence/absence data, an additional collumn should be provided, coded as 0 (absence) and 1 (presence). |
| pal | Character string indicating the name of the palette (see gen_pal). If not supplied, the default will be used. |
| layernames | An optional character vector indicating the names of the layers. This will be used in the legend. If not supplied, names will be extracted from the RasterLayer. |
| crs | Enables to change the default projection used in the Leaflet package. For now, not functional. |
| cluster | Should the points be clustered (i.e., aggregated)? Only valid if `pts` is supplied. Default is FALSE. |
A Leaflet map.
sdm_leaflet,Raster-method: Method for Raster*
sdm_leaflet,data.frame-method: Method for data frames
library(sdmvis) # Load data data("thresholded_sdm") data("pa_data") # Set names sdm.names <- c("current", "future") # Plot sdm_leaflet(sdm = thresholded_sdm, mode = "bin", pts = pa_data, layernames = sdm.names)#> Warning: Discarded ellps WGS 84 in Proj4 definition: +proj=merc +a=6378137 +b=6378137 +lat_ts=0 +lon_0=0 +x_0=0 +y_0=0 +k=1 +units=m +nadgrids=@null +wktext +no_defs +type=crs#> Warning: Discarded datum World Geodetic System 1984 in Proj4 definition#> Warning: Discarded ellps WGS 84 in Proj4 definition: +proj=merc +a=6378137 +b=6378137 +lat_ts=0 +lon_0=0 +x_0=0 +y_0=0 +k=1 +units=m +nadgrids=@null +wktext +no_defs +type=crs#> Warning: Discarded datum World Geodetic System 1984 in Proj4 definition#> Warning: input and ouput crs are the same#> Warning: Discarded ellps WGS 84 in Proj4 definition: +proj=merc +a=6378137 +b=6378137 +lat_ts=0 +lon_0=0 +x_0=0 +y_0=0 +k=1 +units=m +nadgrids=@null +wktext +no_defs +type=crs#> Warning: Discarded datum World Geodetic System 1984 in Proj4 definition#> Warning: Some values were outside the color scale and will be treated as NA#> Warning: Discarded ellps WGS 84 in Proj4 definition: +proj=merc +a=6378137 +b=6378137 +lat_ts=0 +lon_0=0 +x_0=0 +y_0=0 +k=1 +units=m +nadgrids=@null +wktext +no_defs +type=crs#> Warning: Discarded datum World Geodetic System 1984 in Proj4 definition#> Warning: input and ouput crs are the same#> Warning: Discarded ellps WGS 84 in Proj4 definition: +proj=merc +a=6378137 +b=6378137 +lat_ts=0 +lon_0=0 +x_0=0 +y_0=0 +k=1 +units=m +nadgrids=@null +wktext +no_defs +type=crs#> Warning: Discarded datum World Geodetic System 1984 in Proj4 definition#> Warning: Some values were outside the color scale and will be treated as NA