R: Tools for Environmental and Ecological Survey Design

# Tools for Environmental and Ecological Survey Design

## Documentation for package ‘emon’ version 1.3.2

- DESCRIPTION file

## Help Pages

emon-package | Tools for environmental and ecological survey design and analysis
addnoise | Creates random errors for use in power.trend.
detect | Probability of circular patch detection
detect.prop | Probability of detecting a feature that covers a proportion 'theta' of the survey area.
emon | Tools for environmental and ecological survey design and analysis
expected.nb | Expected value of Visual Fast Count Estimator assuming Negative Binomial distribution for counts
expected.pois | Expected value of Visual Fast Count Estimator assuming Poisson distribution for counts
fS.detect | Used in the function detect
fT.detect | Used in function detect
generate.trend | Generates a set of mean values.
GVFC | Calculates the raw Visual Fast Count (VFC) estimator of the mean abundance per transect
GVFCMOM | Function to calculate the method of moments visual fast count estimator
is.wholenumber | To check whether an argument is an integer
mannkendall | Mann-kendall test for trend
mannkendall.stat | Mann-Kendall statistic.
mom.min.nb | Minimising function for VFC MOM estimator assuming Negative Binomial counts.
mom.min.pois | Minimising function for VFC MOM estimator assuming Poisson counts.
n.min | Minimising function used in 'precision'.
permute.BACI | Does non-parametric randomisation test for the interaction term in a BACI design.
permute.groups | Does randomisation test for the difference in means of two vectors 'v1' and 'v2'.
power.BACI | Calculates power for a Before and After Control Impact (BACI) design.
power.groups | Power for comparing mean of two groups
power.trend | Calculates power by simulation to detect a specified trend.
precision | Sample size for given precision or precision for given sample size
size2.samevar | Calculates negative binomial size to preserve constant variance.
svariog | Calculates empirical semi-variogram.