View source: R/canopyporosityfilledratio.R
canopy.porosity.filled.ratio | R Documentation |
This function reads in a the LAD estimates that were previously calculated, finds the ratio of voxels in a given column that contain a LAD estimate and the ratio of voxels in a given column that are empty (i.e. no LAD estimates). The output is a list containing two rasters, one for each calcuation.
canopy.porosity.filled.ratio(lad.array, laz.array, ht.cut, epsg.code)
lad.array |
LAD estimate array that was generated using the machorn.lad function. |
laz.array |
Voxelized LiDAR array that was generated using the laz.to.array function. This contains spatial information for all arrays. |
ht.cut |
Height that calculations will exclude. This is to remove understory LAD estimates from further calculations. If 5 is entered then all voxels 5 meters and above will be included. Enter 0 if you want to include all calculations |
epsg.code |
EPSG code so that the rasters can be projected into the appropriate projection |
These forest structure attributes are based off calculations from:
Hardiman, B., Bohrer, G., Gough, C., & Curtis, P. (2013). Canopy structural changes following widespread mortality of canopy dominant trees. Forests, 4, 537-552. https://doi.org/10.3390/f4030537
A list containing max LAD and height of max LAD rasters.
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