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create TimeRastVariable and TimeRastArray data

Source: R/class_TimeRastData.R
TimeRastData.Rd

  • TimeRastVariable is a data class that is based on a 3D array. It has two "macro" dimensions, time and spatial. But due to the raster spatial has two dimension, the data class actually has three data-dimensions: (time, x, y).

  • TimeRastArray is a data class that is based on a 4D array. It has three "macro" dimensions: time, spatial, and variable. But due to the raster spatial has two dimension, the data class actually has four data-dimensions: (time, x, y, variable).

Usage

new_TimeRastVariable(data_, Name_, Unit_, Time_, ...)

# S3 method for SpatRaster
new_TimeRastVariable(data_, Name_, Unit_, Time_, ...)

# S3 method for array
new_TimeRastVariable(data_, Name_, Unit_, Time_, Spat_EPSG, Spat_extent, ...)

new_TimeRastArray(data_, Name_, Unit_, Time_, ...)

# S3 method for SpatRaster
new_TimeRastArray(data_, Name_, Unit_, Time_, dim_Time_Vari = c(1, 2), ...)

# S3 method for array
new_TimeRastArray(data_, Name_, Unit_, Time_, Spat_EPSG, Spat_extent, ...)

Arguments

data_

(num-array or terra::SpatRaster)

  • 3D (array) for new_TimeRastVariable.array(), it must in the (time, x, y) dimension-order, use the function aperm() to adjust the dimension-order

  • 4D (array) for new_TimeRastArray.array(), it must in the (time, x, y, variable) dimension-order, use the function aperm() to adjust the dimension-order

  • (terra::SpatRaster) (multilayer) for new_TimeRastVariable.SpatRaster() and new_TimeRastArray.SpatRaster(), created by terra::rast()

Name_, Unit_

(char or vector of char) name and unit of Variable, Unit_ should be units::as_units()

Time_

(vector of lubridate::timepoint) time dimension, created by lubridate::as_date() or lubridate::as_datetime()

...

other parameters

Spat_EPSG

(integer) EPSG code of the CRS (Coordinate Reference System)

Spat_extent

(vector of numric), extension of the Raster in c(xmin, xmax, ymin, ymax), it can be projected east- and north-meter or global longitude- and latitude-degree

dim_Time_Vari

the order of time- and variable-dimenion in the layer of terra::rast, it must be

  • c(1, 2): first time then variable or

  • c(2, 1): first variable then time,

  • default is c(1, 2)

Value

TimeRastVariable, TimeRastArray data