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# Overview

`lidaRtRee` is an `R` package that provides functions for **forest analysis using airborne laser scanning** (lidar remote sensing) data: tree detection / segmentation and area-based approach. It includes complementary steps for forest mapping: extraction of both physical (gaps, edges, trees) and statistical features from lidar data, model calibration with ground reference, and maps export. 

# Installation

* `R` >= 4.0.3 recommended, package `lidR` >= 3.1.0 required
* **build latest version from source** with the `devtools` package by running in an `R` console: `devtools::install_git("https://gitlab.irstea.fr/jean-matthieu.monnet/lidaRtRee/")`
* **windows installation with binary zip file of version 3.0.1**: run in an `R` console: `install.packages("https://gitlab.irstea.fr/jean-matthieu.monnet/lidartree_tutorials/-/raw/master/win-binary/lidaRtRee_3.0.1.zip")`

# Tutorials

**Tutorials** using `lidaRtRee` functions are available on the [lidaRtRee_tutorials](https://gitlab.irstea.fr/jean-matthieu.monnet/lidartree_tutorials/) repository, as `Rmarkdown` files, `html` and `pdf` files, and including datasets to run the code. The [wiki](https://gitlab.irstea.fr/jean-matthieu.monnet/lidartree_tutorials/-/wikis/home) presents the different tutorials:

* [Tree detection](https://gitlab.irstea.fr/jean-matthieu.monnet/lidartree_tutorials/-/wikis/Tree-segmentation)
* [Forest field plot coregistration with ALS data](https://gitlab.irstea.fr/jean-matthieu.monnet/lidartree_tutorials/-/wikis/Field-plot-coregistration-with-ALS-data)
* [Forest gaps and edges detection](https://gitlab.irstea.fr/jean-matthieu.monnet/lidartree_tutorials/-/wikis/Forest-gaps-and-edges-detection)
* [Forest structure metrics computation and mapping](https://gitlab.irstea.fr/jean-matthieu.monnet/lidartree_tutorials/-/wikis/Forest-structure-metrics-mapping)
* [Area-based approach for forest parameters estimation](https://gitlab.irstea.fr/jean-matthieu.monnet/lidartree_tutorials/-/wikis/Area-based-approach)