lcens-class

Class "lcens" describes left-censored data.
From smwrQW package.

classes

internal

Enable users to evaluate long-term trends using a Generalized
Additive Modeling (GAM) approach. The model development includes selecting a
GAM structure to describe nonlinear seasonally-varying changes over time,
incorporation of hydrologic variability via either a river flow or salinity,
the use of an intervention to deal with method or laboratory changes
suspected to impact data values, and representation of left- and
interval-censored data. The approach has been applied to water quality data
in the Chesapeake Bay, a major estuary on the east coast of the United
States to provide insights to a range of management- and research-focused
questions.

Erik Leppo

baytrends

Long Term Water Quality Trend Analysis

lcens-class function

<dl class="dl-horizontal">
<dt><code>.Data</code></dt><dd>a 2-column matrix that contains the value and the detection limit
of the left-censored data. Missing values are permitted.</dd></dl><dt><code>censor.codes</code></dt><dd>a logcial value, <code>TRUE</code> indicates a censored value, 
<code>FALSE</code> indates an uncensored value. Missing values are permitted only for
missing values in <code>.Data</code>.</dd><dt><code>names</code></dt><dd>a character vector of unique names for each element in <code>.Data</code>.</dd>

lcens-class: Left-censored Data

Description

Arguments

Slots

Objects from the Class

References

Examples