AddToHoldridge {Ternary} | R Documentation |
Plot shapes onto a ternary diagram created with TernaryPlot()
,
or a Holdridge plot created with HoldridgePlot()
.
AddToHoldridge(PlottingFunction, pet, prec, ...) HoldridgeArrows(fromCoordinates, toCoordinates = fromCoordinates, ...) HoldridgeLines(pet, prec, ...) HoldridgePoints(pet, prec, ...) HoldridgePolygon(pet, prec, ...) HoldridgeText(pet, prec, ...) AddToTernary(PlottingFunction, coordinates, ...) TernarySegments(fromCoordinates, toCoordinates = fromCoordinates, ...) TernaryArrows(fromCoordinates, toCoordinates = fromCoordinates, ...) TernaryLines(coordinates, ...) TernaryPoints(coordinates, ...) TernaryPolygon(coordinates, ...) TernaryText(coordinates, ...) JoinTheDots(coordinates, ...)
PlottingFunction |
Function to add data to a plot; perhaps one of
|
pet, prec |
Numeric vectors giving potential evapotranspiration ratio and annual precipitation (in mm). |
... |
Additional parameters to pass to |
fromCoordinates, toCoordinates |
For |
coordinates |
A list, matrix, data.frame or vector in which each element (or row) specifies the three coordinates of a point in ternary space. |
HoldridgeArrows()
: Add arrows to Holdridge plot
HoldridgeLines()
: Add lines to Holdridge plot
HoldridgePoints()
: Add points to Holdridge plot
HoldridgePolygon()
: Add polygons to Holdridge
plot
HoldridgeText()
: Add text to Holdridge plot
TernarySegments()
: Add segments
TernaryArrows()
: Add arrows
TernaryLines()
: Add lines
TernaryPoints()
: Add points
TernaryPolygon()
: Add polygons
TernaryText()
: Add text
JoinTheDots()
: Add points, joined by lines
Martin R. Smith (martin.smith@durham.ac.uk)
Other Holdridge plotting functions:
HoldridgeHypsometricCol()
,
HoldridgePlot()
,
holdridgeClasses
,
holdridge
coords <- list( A = c(1, 0, 2), B = c(1, 1, 1), C = c(1.5, 1.5, 0), D = c(0.5, 1.5, 1) ) TernaryPlot() AddToTernary(lines, coords, col = "darkgreen", lty = "dotted", lwd = 3) TernaryLines(coords, col = "darkgreen") TernaryArrows(coords[1], coords[2:4], col = "orange", length = 0.2, lwd = 1) TernaryText(coords, cex = 0.8, col = "red", font = 2) TernaryPoints(coords, pch = 1, cex = 2, col = "blue") AddToTernary(points, coords, pch = 1, cex = 3) # An equivalent syntax applies to Holdridge plots: HoldridgePlot() pet <- c(0.8, 2, 0.42) prec <- c(250, 400, 1337) HoldridgeText(pet, prec, c("A", "B", "C")) AddToHoldridge(points, pet, prec, cex = 3)