Become an expert in R — Interactive courses, Cheat Sheets, certificates and more!

chronosphere

Earth System History Variables

The purpose of the 'chronosphere' project is to facilitate spatially explicit analyses of (paleo)environmental/ecological research. The package serves as a gateway to plate tectonic reconstructions, deep time global climate model results as well as fossil occurrence datasets such as the Paleobiology Database <https://paleobiodb.org/> and the PaleoReefs Database <https://www.paleo-reefs.pal.uni-erlangen.de/>. Environmental data stored on a remote server can be downloaded and imported directly to the R environment. Query functions to the GPlates <https://www.gplates.org/> desktop application or the GPlates Web Service <https://gws.gplates.org/> allow users to reconstruct coordinates, static plates, and Spatial objects. A wrapper class 'RasterArray' is implemented around the 'RasterLayer' class, allowing the organization of spatially explicit raster data in n-dimensional arrays. The project is developed under the umbrella of the DFG (Deutsche Forschungsgemeinschaft) Research Unit TERSANE2 (For 2332, TEmperature Related Stressors in ANcient Extinctions).

Functions (69)

RasterArray-class

Virtual Array of RasterLayers

SpatialArray-class

Virtual Array of Vector Spatial data

SpatialStack-class

Stack of Spatial Objects

adimatt

Number of columns and rows of a RasterArray or SpatialArray

aggregate

Aggregate raster cells in a RasterArray object

apply-methods

Apply-type iterator for RasterArrays and SpatialArrays

arraylength

Number of elements or layers in a RasterArray or SpatialArray class object

as.data.frame-methods

S3-type method for RasterArray and SpatialArray

as.list-RasterArray-method

Coerce a RasterArray class object to a list

as.list-SpatialArray-method

Coerce a SpatialArray class object to a list

asRasterArray

Convert Raster* objects to RasterArrays

asSpatialArray

Convert Spatial* objects to SpatialArrays

bind-methods

Combine Raster and Vector Spatial data to RasterArray or SpatialArray objects by rows or columns

calc-RasterArray-function-method

Calculate method for the RasterArray object

cellStats-RasterArray-method

Statistics across cells in a RasterArray object

chronosphere

Earth System History Variables

coasts

PaleoMAP PaleoCoastlines (demo)

coercion

Coerce RasterLayer, RasterStack and RasterBrick object to a RasterArray

colnames

Column names of two-dimensional RasterArray or SpatialArray

combine

Combine RasterLayers and one-dimensional RasterArrays and Spatial* objects with one-dimensinoal SpatialArrays

crop-RasterArray-method

Crop a RasterArray object

datasets

Download a database extract from chronosphere remote server

dems

PaleoDEM rasters from the reconstructions Chris Scotese.

dim-XArray-method

Dimensions of SpatialArray or RasterArray objects

dimlayer

Dimensions of RasterLayers in a RasterArray object

dimnames

Names of multidimensional RasterArray or SpatialArray objects.

disaggregate

Disaggregate raster cells in a RasterArray object

doubleBracketReplace

Replace RasterLayers in a RasterArray object and Spatial* objects in a SpatialArray object.

extent

Extent of a RasterArray object

extract

Extraction of values from multiple RasterLayers in a RasterArray object

extremeValues

Minimum and maximum values in a RasterArray object

fetch

Data fetching

info

Documentation page of a variable

is.na.RasterArray

Positions of missing values in a RasterArray object

is.na.SpatialArray

Positions of missing values in a SpatialArray object

layers

Names of RasterArray or SpatialArray Layers in the stack

mapedge

Function to quickly draft the edge of the equirectangular projection

mapplot

Wrapper function to plot maps of different classes

mask-RasterArray-methods

Methods to mask RasterArray objects, or to mask with them

matchtime

Match the dates of a time-dependent variable with a predefined vector

names

Names of one-dimensional RasterArray, SpatialStack or SpatialArray objects.

ncell

Number of cells in a RasterArray object

newbounds

Redefine bounds of a named matrix

nums

Names as numerics

nvalues

The total number of values in a RasterArray object

platemodel

Class of objects representing plate tectonic models

plots

Shorthand for the plotting RasterArray and SpatialArray objects

projectRaster

Project a RasterArray object

proxy

The proxy of a RasterArray or SpatialArray object

ramps

Colour gradient ramps

reconstruct

Reconstruct geographic features

reference

Retrieve citation of data object

replacementSingle

Replace layers of a RasterArray or SpatialArray object

replacementSingle-spatialstack

Replace layers of a SpatialStack object

res

Resolution of a RasterArray object

resample-RasterArray-ANY-method

Resample a RasterArray object

rotate

Rotate a RasterArray object

rownames

Row names of two-dimensional RasterArray or SpatialArray objects

shaper

Code snippets defining ranges based on points located on a plot

spTransform

Function to transform the coordinate reference system of an entire SpatialStack or SpatialArray

stack

Stacking method for the vector Spatial* SpatialStack objects

sub-SpatialStack-ANY-ANY-method

Indexing to extract subsets of a SpatialStack object

sub-XArray-ANY-ANY-method

Indexing to extract subsets of a codeRasterArray or SpatialArray object

sub-sub-SpatialStack-ANY-ANY-method

Indexing to extract Spatial items from a SpatialStack object

sub-sub-XArray-ANY-ANY-method

Indexing to extract RasterLayers of a RasterArray or Spatial* of a SpatialArray object

subset-SpatialStack-method

Subset a SpatialStack object

subset-XArray-method

Subset a RasterArray or SpatialArray object

t-methods

Transpose a RasterArray or SpatialArray object

types

Return types of objects in a SpatialStack or SpatialArray object

chronosphere

Earth System History Variables

v0.4.1

CC BY 4.0

Authors

Adam T. Kocsis, Nussaibah B. Raja

Initial release

2021-04-16

chronosphere

Functions (69)

chronosphere

We don't support your browser anymore