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chronosphere (version 0.3.1)

Earth System History Variables

Description

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 and the PaleoReefs Database . Environmental data stored on a remote server can be downloaded and imported directly to the R environment. Query functions to the GPlates desktop application or the GPlates Web Service 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).

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Version

Install

install.packages('chronosphere')

Monthly Downloads

355

Version

0.3.1

License

CC BY 4.0

Maintainer

Adam Kocsis

Last Published

August 10th, 2020

Functions in chronosphere (0.3.1)

ncol,RasterArray-method

Number of columns and rows of a RasterArray
calc,RasterArray,function-method

Calculate method for the RasterArray object
cbind.RasterArray

Combine RasterLayers or RasterArrays by rows or columns
aggregate

length,RasterArray-method

Number of elements or layers in a RasterArray class object
as.list,RasterArray-method

Coerce a RasterArray class object to a list
RasterArray-class

Virtual Array of RasterLayers
as.data.frame.RasterArray

S3-type method for RasterArray allowing View(), head() and tail() to work. Convert RasterArray class objects to data.frames
as.RasterArray

Convert Raster* objects to RasterArrays
apply

Apply-type iterator for RasterArrays
dems

PaleoDEM rasters from the reconstructions Chris Scotese.
datasets

Download a database extract from chronosphere remote server
crop,RasterArray-method

Crop a RasterArray object
clim

Annual mean temperature and precipitation (2001-2010)
dimlayer

Dimensions of RasterLayers in a RasterArray object
dimnames,RasterArray-method

Names of multidimensional RasterArray or SpArray objects.
as

Coerce RasterLayer, RasterStack and RasterBrick object to a RasterArray
ncell,RasterArray-method

Number of cells in a RasterArray object
extract

Extraction of values from multiple RasterLayers in a RasterArray object
dim,RasterArray-method

Dimensions of RasterArray objects
newbounds

Redefine bounds of a named matrix
minValue,RasterArray-method

Minimum and maximum values in a RasterArray object
fetch

Data fetching
info

Documentation page of a variable
nums

Names as numerics
cellStats,RasterArray-method

Statistics across cells in a RasterArray object
reference

Retrieve citation of data object
rotate

chronosphere

Earth System History Variables
layers

Names of RasterArray's Layers in the stack
mask,RasterArray,RasterLayer-method

Methods to mask RasterArray objects, or to mask with them
mapplot

Wrapper function to plot maps of different classes
is.na.RasterArray

Positions of missing values in a RasterArray object
disaggregate

Disaggregate raster cells in a RasterArray object
ramps

Colour gradient ramps
extent

names,RasterArray-method

Names of one-dimensional RasterArray or SpArray objects.
reconstruct

Reconstruct geographic features
matchtime

Match the dates of a time-dependent variable with a predefined vector
colnames,RasterArray-method

Column names of two-dimensional RasterArray or SpArray
proxy

The proxy of a RasterArray object
projectRaster

Project a RasterArray object
nvalues

The total number of values in a RasterArray object
xres,RasterArray-method

Resolution of a RasterArray object
resample,RasterArray,ANY-method

Resample a RasterArray object
t,RasterArray-method

Transpose a RasterArray object
rownames,RasterArray-method

Row names of two-dimensional RasterArray or SpArray objects
subset,RasterArray-method

Subset a RasterArray object
platemodel-class

Class of objects representing plate tectonic models
[[,RasterArray,ANY,ANY-method

Indexing to extract RasterLayers of a RasterArray object
combine

Combine RasterLayers and one-dimensional RasterArrays
plot,RasterArray,missing-method

[[<-,RasterArray,ANY,ANY-method

Replace RasterLayers in a RasterArray object
shaper

Code snippets defining ranges based on points located on a plot
[<-,RasterArray,ANY,ANY,logical-method

Replace layers of a RasterArray object
[,RasterArray,ANY,ANY-method

Indexing to extract subsets of a RasterArray object