Arith-censored

Arith,lcens,numeric-method

Arith,numeric,lcens-method

Arith,lcens,lcens-method

Arith,mcens,numeric-method

Arith,numeric,mcens-method

Arith,mcens,mcens-method

Arith,qw,numeric-method

Arith,numeric,qw-method

Arith,qw,qw-method

<p>numeric, censored, or water-quality data. Missing values are permitted in 
either argument and result in a missing value in the output.</p>

e1, e2

<p>Some limited arithmetic methods are possible and well-defined for
censored data. Water-quality data require specialized functions to maintain data
integrity.</p>

manip

methods

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

Arith-censored function

Arithmetic Methods for <code>lcens</code>, <code>mcens</code>, and <code>qw</code> objects — Arith-censored

Arithmetic Methods for <code>lcens</code>, <code>mcens</code>, and <code>qw</code> objects

Arith-censored: Arithmetic Methods for `lcens`, `mcens`, and `qw` objects

Description

Usage

Arguments

Value

See Also

Examples