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wq (version 0.3-5)

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

0.3-5

License

GPL-2

Maintainer

Alan Jassby

Last Published

March 2nd, 2012

Functions in wq (0.3-5)

sfbay

San Francisco Bay water quality data
eofNum

Assess significance of eigenvalues
eof

Empirical orthogonal functions
phenoPhase

Phenological phase
trendHomog

Trend homogeneity test
phenoPhase-methods

Methods for Function phenoPhase
mannKen

Mann-Kendall test and the Sen slope
seasonTrend

Determine seasonal trends
ammFrac

Un-ionized ammonia
seaKen

Seasonal and Regional Kendall test
mts2ts

Converts matrix to vector time series for various analyses
plotSeason

Plots seasonal patterns for a time series
WqData-class

Class "WqData"
ts2df

Convert time series to data frame
ec2pss

Convert conductivity to salinity
decompTs

Decompose a time series
eofPlot

Plot results of an EOF analysis
phenoAmp

Phenological amplitude
tsMake-methods

Methods for Function tsMake
oxySol

Dissolved oxygen at saturation
interpTs

Interpolate or substitute missing time series values
plotTs

Time series plot
tsMake

Create time series from water quality data
plotTsTile

Image plot of monthly time series
DateTime-class

Class "DateTime"
layOut

Arrange a group of saved plots
wqData

Construct an object of class "WqData"
wq-package

Exploring water quality monitoring data
wq-internal

Internal wq objects
utilities

Miscellaneous utility functions
zoo-class

Class "zoo"
plotTsAnom

Anomaly plot of time series
phenoAmp-methods

Methods for Function phenoAmp