lasR-package: Laser processing in R

Description Details Author(s) References Examples

Description

Handy functions for forest inventory researches using airborne laser scanning

Details

Package: lasR
Type: Package
Version: 0.2
Date: 2012-06-012
License: GPL
LazyLoad: yes

Currently the package has functions for computing standard metrics used in area-based forest inventory assisted by airborne laser scanning.

Author(s)

Hans Ole Orka <[email protected]>

References

Naesset, E. (2002). Predicting forest stand characteristics with airborne scanning laser using a practical two-stage procedure and field data. Remote Sensing of Environment,Vol. 80, No. 1, pp. 88-99.

Naesset, E. (2004). Practical large-scale forest stand inventory using a small-footprint airborne scanning laser. Scandinavian Journal of Forest Research,Vol. 19, No. 2, pp. 164-179.

Examples

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data(las)
dens <- laser.density(las$dz,las$ID,gtv=2)
dist <- laser.distribution(las$dz,las$ID,gtv=2)
X <- laser.metrics(las$dz,las$ID,gtv=2)
ID <- row.names(X)
 
#Metrics from only first of many and single echoes
first <- laser.metrics(las$dz[las$r==1],las$ID[las$r==1],gtv=2,suffix=".F")
names(first)
#Merics from last of many and single echoes
last <- laser.metrics(las$dz[las$r==las$n],las$ID[las$r==las$n],gtv=2,suffix=".L")
names(last)

hansoleorka/lasR documentation built on Nov. 22, 2018, 3:40 a.m.