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Edlin Guerra-Castro, Juan Carlos Cajas, Juan Jose Cruz-Motta, Nuno Simoes and Maite Mascaro
SSP is an R package design to estimate sampling effort in studies of ecological communities based on the definition of pseudo-multivariate standard error (MultSE) (Anderson & Santana-Garcon 2015), simulation of data and resampling (Guerra-Castro et al., 2020).
SSP includes seven functions: assempar
for extrapolation of assemblage parameters using pilot data;
simdata
for simulation of several data sets based on
extrapolated parameters; datquality
for evaluation of
plausibility of simulated data; sampsd
for repeated
estimations of MultSE for different sampling designs in
simulated data sets; summary_sd
for summarizing the
behavior of MultSE for each sampling design across all
simulated data sets, ioptimum
for identification of the
optimal sampling effort, and plot_ssp
to plot sampling
effort vs MultSE.
The SSP package will be available on CRAN but can be downloaded from github using the following commands:
## Packages needed to build SSP and vignettes
install.packages(pkgs = c('devtools', 'knitr', 'rmarkdown'))
library(devtools)
library(knitr)
library(rmarkdown)
## install the latest version of SSP from github
install_github('edlinguerra/SSP', build_vignettes = TRUE)
library(SSP)
For examples about how to use SSP, see
help('SSP')
after instalation.
These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.