sample_existing_srs

This function takes an existing <code>sf</code> object and returns a random sub-sample of size <code>nSamp</code>.

internal

Structurally guided sampling (SGS) approaches for airborne laser scanning (ALS; LIDAR). Primary functions provide means
to generate data-driven stratifications & methods for allocating samples. Intermediate functions for calculating and extracting important information
about input covariates and samples are also included. Processing outcomes are intended to help forest and environmental management
practitioners better optimize field sample placement as well as assess and augment existing sample networks in the context of data
distributions and conditions. ALS data is the primary intended use case, however any rasterized remote sensing data can be used,
enabling data-driven stratifications and sampling approaches.

Tristan RH Goodbody

sgsR

Structurally Guided Sampling

Nicholas C Coops

Martin Queinnec

sample_existing_srs function

<dl><dt>existing</dt>
<dd>sf 'POINT'. Existing plot network.</dd>
<dt>nSamp</dt>
<dd>Numeric. Number of desired samples.</dd>
<dt>filename</dt>
<dd>Character. Path to write output samples.</dd>
<dt>overwrite</dt>
<dd>Logical. Choice to overwrite existing <code>filename</code> if it exists.</dd></dl>

Arguments

Randomly sample from an existing dataset — sample_existing_srs

<dl>

<dt>existing</dt>
<dd>sf 'POINT'. Existing plot network.</dd>


<dt>nSamp</dt>
<dd>Numeric. Number of desired samples.</dd>


<dt>filename</dt>
<dd>Character. Path to write output samples.</dd>


<dt>overwrite</dt>
<dd>Logical. Choice to overwrite existing <code>filename</code> if it exists.</dd>

</dl>

sample_existing_srs: Randomly sample from an existing dataset

Description

Usage

Value

Arguments