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wq (version 0.3-4)

Exploring water quality monitoring data

Description

Functions to assist in the processing and exploration of data from monitoring programs for aquatic ecosystems. The name "wq" stands for "water quality" and reflects a focus on time series data for physical and chemical properties of water, as well as the plankton. The package is intended for programs that sample approximately monthly at discrete stations, a feature of many legacy data sets. Although our emphasis is on aquatic ecosystems, most of the functions should be useful for analysis of similar-frequency time series regardless of the subject matter.

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Version

Install

install.packages('wq')

Monthly Downloads

1

Version

0.3-4

License

GPL-2

Maintainer

Alan Jassby

Last Published

September 5th, 2011

Functions in wq (0.3-4)

layOut

Arrange a group of saved plots
seasonTrend

Determine seasonal trends
WqData-class

Class "WqData"
plotTs

Time series plot
zoo-class

Class "zoo"
wq-package

Exploring water quality monitoring data
ts2df

Convert time series to data frame
decompTs

Decompose a time series
mts2ts

Converts matrix to vector time series for various analyses
plotSeason

Plots seasonal patterns for a time series
phenoAmp

Phenological amplitude
ammFrac

Un-ionized ammonia
mannKen

Mann-Kendall test and the Sen slope
eofNum

Assess significance of eigenvalues
plotTsTile

Image plot of monthly time series
plotTsAnom

Anomaly plot of time series
oxySol

Dissolved oxygen at saturation
ec2pss

Convert conductivity to salinity
tsMake

Create time series from water quality data
phenoAmp-methods

Methods for Function phenoAmp
interpTs

Interpolate or substitute missing time series values
phenoPhase-methods

Methods for Function phenoPhase
phenoPhase

Phenological phase
wqData

Construct an object of class "WqData"
eof

Empirical orthogonal functions
eofPlot

Plot results of an EOF analysis
seaKen

Seasonal and Regional Kendall test
DateTime-class

Class "DateTime"
wq-internal

Internal wq objects
trendHomog

Trend homogeneity test
tsMake-methods

Methods for Function tsMake
utilities

Miscellaneous utility functions
sfbay

San Francisco Bay water quality data