addnoise

meanvalues

reps

 Character string which must be one of <code>Normal</code> (default), <code>Poisson</code> or <code>Negbin</code>

distribution

 Standard Deviation for Normal distribution

 Size parameter for Negative Binomial distribution

nbsize

randeffect

randeffect.sd


This function is used within <code><a rd-options="" href="/link/power.trend?package=emon&version=1.3" data-mini-rdoc="emon::power.trend">power.trend</a></code>.
Distribution of noise can be either Normal, Poisson or Negative Binomial. The mean values are entered
as a parameter (possibly generated by function <code><a rd-options="" href="/link/generate.trend?package=emon&version=1.3" data-mini-rdoc="emon::generate.trend">generate.trend</a></code>). Other parameters (<code>sd</code> for Normal,
<code>nbsize</code>
for Negative Binomial) need to be given. Values in <code>meanvalues</code> are used as the mean values for one of the three
specified distributions and then a random allocation is made for each of the <code>nobs</code> values, where <code>nobs</code> is the
length of <code>meanvalues</code>.


Statistical tools for environmental and ecological surveys.
Simulation-based power and precision analysis; detection probabilities from
different survey designs; visual fast count estimation.

Jon Barry

emon

Tools for Environmental and Ecological Survey Design

addnoise function


This function is used within <code><a rd-options='' href='power.trend'>power.trend</a></code>.
Distribution of noise can be either Normal, Poisson or Negative Binomial. The mean values are entered
as a parameter (possibly generated by function <code><a rd-options='' href='generate.trend'>generate.trend</a></code>). Other parameters (<code>sd</code> for Normal,
<code>nbsize</code>
for Negative Binomial) need to be given. Values in <code>meanvalues</code> are used as the mean values for one of the three
specified distributions and then a random allocation is made for each of the <code>nobs</code> values, where <code>nobs</code> is the
length of <code>meanvalues</code>.


addnoise: Creates random errors for use in power.trend.

Description

Usage

Arguments

Value

See Also