View source: R/05_LongTermChange.R
LongTermChange | R Documentation |
LongTermChange combines the Steadiness Index with the baseline levels of land productivity and with the change of state along the time series, resulting in a 22-class object (see details)
LongTermChange(
SteadinessIndex = NULL,
BaselineLevels = NULL,
StateChange = NULL,
filename = ""
)
SteadinessIndex |
SpatRaster object (or its file name). Steadiness Index (4-class) |
BaselineLevels |
SpatRaster object (or its file name). Baseline levels of land productivity (beginning of time series; 3-class) |
StateChange |
SpatRaster object (or its file name). Change of state of land productivity (beginning minus end of time series; 3-class) |
filename |
Character. Output filename. Optional |
St1-low-No Change <- 1
St1-low-Change 1 categ <- 2
St1-low-Change 2 or more categs <- 3
St1-medium-No Change <- 4
St1-medium-Change 1 categ <- 5
St1-medium-Change 2 or more categs <- 6
St1-high-No Change <- 7
St1-high-Change 1 categ <- 8
St1-high-Change 2 or more categs <- 9
St2-low-No Change <- 10
St2-low-Change 1 categ <- 10
St2-low-Change 2 or more categs <- 10
St2-medium-No Change <- 11
St2-medium-Change 1 categ <- 11
St2-medium-Change 2 or more categs <- 11
St2-high-No Change <- 12
St2-high-Change 1 categ <- 12
St2-high-Change 2 or more categs <- 12
St3-low-No Change <- 13
St3-low-Change 1 categ <- 13
St3-low-Change 2 or more categs <- 13
St3-medium-No Change <- 14
St3-medium-Change 1 categ <- 14
St3-medium-Change 2 or more categs <- 14
St3-high-No Change <- 15
St3-high-Change 1 categ <- 15
St3-high-Change 2 or more categs <- 15
St4-low-No Change <- 16
St4-low-Change 1 categ <- 17
St4-low-Change 2 or more categs <- 18
St4-medium-No Change <- 19
St4-medium-Change 1 categ <- 20
St4-medium-Change 2 or more categs <- 21
St4-high-No Change <- 22
St4-high-Change 1 categ <- 22
St4-high-Change 2 or more categs <- 22
Values = 0 in the final map indicates that there is a scarcity of data in the productivity variable (i.e. only 1 year with data), so that the indicator cannot be calculated
SpatRaster object
Xavier Rotllan-Puig
steadiness
, baseline_lev
, state_change
sb <- terra::rast(paste0(system.file(package='LPDynR'), "/extdata/sb_cat.tif"))
SteadinessIndex_raster <- steadiness(obj2process = sb)
BaselineLevels_raster <- baseline_lev(obj2process = sb,
yearsBaseline = 3,
drylandProp = 0.4)
StateChange_raster <- state_change(obj2process = sb,
yearsBaseline = 3)
LongTermChange(SteadinessIndex = SteadinessIndex_raster,
BaselineLevels = BaselineLevels_raster,
StateChange = StateChange_raster)
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