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wq (version 0.4-1)

Exploring water quality monitoring data

Description

Functions to assist in the processing and exploration of data from environmental monitoring programs. The name "wq" stands for "water quality" and reflects the original 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. 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

42

Version

0.4-1

License

GPL-2

Maintainer

Anthony Malkassian

Last Published

May 14th, 2014

Functions in wq (0.4-1)

interpTs

Interpolate or substitute missing time series values
wq-internal

Internal wq objects
layOut

Arrange a group of saved plots
plotSeason

Plots seasonal patterns for a time series
tsMake

Create time series from water quality data
wqData

Construct an object of class "WqData"
decompTs

Decompose a time series
sfbay

San Francisco Bay water quality data
plotTs

Time series plot
mts2ts

Converts matrix to vector time series for various analyses
seaKen

Seasonal and Regional Kendall test
WqData-class

Class "WqData"
DateTime-class

Class "DateTime"
tsMake-methods

Methods for Function tsMake
trendHomog

Trend homogeneity test
eofNum

Assess significance of eigenvalues
eofPlot

Plot results of an EOF analysis
seasonTrend

Determine seasonal trends
phenoPhase-methods

Methods for Function phenoPhase
plotTsAnom

Anomaly plot of time series
ammFrac

Un-ionized ammonia
phenoAmp

Phenological amplitude
mannKen

Mann-Kendall test and the Sen slope
utilities

Miscellaneous utility functions
eof

Empirical orthogonal functions
phenoPhase

Phenological phase
zoo-class

Class "zoo"
wq-package

Exploring water quality monitoring data
ec2pss

Convert conductivity to salinity
ts2df

Convert time series to data frame
oxySol

Dissolved oxygen at saturation
phenoAmp-methods

Methods for Function phenoAmp
plotTsTile

Image plot of monthly time series