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densitr (version 0.2)

Analysing Density Profiles from Resistance Drilling of Trees

Description

Provides various tools for analysing density profiles obtained by resistance drilling. It can load individual or multiple files and trim the starting and ending part of each density profile. Tools are also provided to trim profiles manually, to remove the trend from measurements using several methods, to plot the profiles and to detect tree rings automatically. Written with a focus on forestry use of resistance drilling in standing trees.

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Install

install.packages('densitr')

Monthly Downloads

220

Version

0.2

License

GPL-3

Issues

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Repository

https://github.com/krajnc/densitr

Maintainer

Luka Krajnc

Last Published

March 22nd, 2022

Functions in densitr (0.2)

manual_trim_detect

Manually select a starting or ending location of a density profile

Detect measurement starting point automatically using changepoint segmentation

Detrend (remove a trend) a density profile either using linear or GAM regression

Plot a list of dp objects, one by one

Automatically trim a list of density profiles on both sides

Automatically trim a list of density profiles on the starting side

Read a single resistance-drilling density profile measurement file (*.dpa)

Get ring widths from identified tree rings

remove_trim_failures

Remove automatic trim failures from a list of trimmed dp objects and return only non-failed trimmed objects

extract_dpa_name

Extract a file name from a full path

Manually trim a list of density profiles

separate_trim_failures

Remove automatic trim failures from a list of trimmed dp objects and return ONLY failures

plot_end_detection

Display end detection on a list of dp objects

Plot trimming failures one by one

plot_start_detection

Display start detection on a list of dp objects

Display automatic trimming on a list of dp objects

Combines density measurement from a dp object list into a single data frame

combine_footers

Combines footer data from a dp object list into a single data frame

correct_failures

Manually correct failures after automatic trim detection

Automatically trim an individual density profile on both sides

Automatically trim an individual density profile on the starting side

Detect measurement ending point automatically using changepoint segmentation

Load a single density profile measurement file (*.dpa) or a directory of *.dpa files.

Automatically identify tree rings in a density profile