pbdb_map_occur: pbdb_map_occur
In paleobioDB: Download and Process Data from the Paleobiology Database

Description Usage Arguments Details Value See Also Examples

View source: R/pbdb_geographic_functions.R

Creates a RasterLayer object and a plot of the sampling effort (number of fossil records per cell).

1 2	pbdb_map_occur (data, res=5, col.int="white", col.ocean="black", col.eff=c("light blue","blue"), do.plot=TRUE, ...)

`data`	Input dataframe. This dataframe is the output of `pbdb_occurrences` function using the argument: `show="coords"`. See too: Details and Examples
`res`	the resolution of the RasterLayer object (in decimal degrees). See: `raster`
`col.int`	The colour of the mainland
`col.ocean`	The colour of the ocean
`col.eff`	Two or more colours. To generate the colour gradient used to show the number of occurrences per cell in map
`do.plot`	Logical; `TRUE` the function returns a RasterLayer and a plot.
`...`	Others parameters. See `par` and `map`

CAUTION! The argument show = "coords" in pbdb_occurrences function is required. We recommend the use of a cairo device (X11) for better visualization of the graphs. See Examples

A RasterLayer object and a plot with the sampling effort (number of fossil records per cell). This RasterLayer object have the resolution controlled by the argument res. The deflaut is res=1.

See pbdb_occurrences, map, par and colors help pages

## Not run: 
data<- pbdb_occurrences (limit="all", vocab= "pbdb", base_name="Canis",
show="coords")
X11(width=13, height=7.8)
pbdb_map_occur (data,res=2)
## to obtain the raster file without plotting it
pbdb_map_occur (data,res=3,do.plot=F)

## End(Not run)