The Nature Conservancy's web page at http://conserveonline.org/workspaces/iha describes the software and has illustrations of it's use. The IHA R package does not currently implement the EFC component of the software.

Author | Jason Law |

Date of publication | 2013-06-27 16:33:19 |

Maintainer | Jason Law <jason.e.law@gmail.com> |

License | GPL-2 |

Version | 0.2-41 |

**bullrun:** Bull Run river flow data

**change.rate:** Calculate change rate for a vector

**flow.duration:** Plot a flow duration curve

**group1:** Magnitude of monthly water conditions

**group2:** Calculates the group2 IHA statistics

**group2Funs:** Calculates group2 statistics from a matrix of rolling means

**group3:** Calculate the group 3 IHA parameters.

**group4:** Calculate the group 4 IHA parameters.

**group5:** Calculate the group 5 IHA parameters.

**IHA-package:** Indicators of Hydrologic Alteration

**internal:** Internal functions in IHA

**plotDischarge:** Plot discharge

**plot.group1:** Plot group1 statistics

**plotGroup1:** Plot group1 statistics

**read.flow:** Reads a rdb formatted data file from the USGS web site or...

**runmean.iha:** Calculate rolling means for group2 statistics

**water.month:** Extract the month of the water year from a date or time...

**water.year:** Return a string giving the water year for a date

**which.min.zoo:** Calculate the date of a extreme value for a zoo series

**yday2:** Calculate the day of the year as TNC does in their IHA...

IHA/DESCRIPTION

IHA/NAMESPACE

IHA/R

IHA/R/annual.extrema.R
IHA/R/as.data.frame.rle.R
IHA/R/baseflow.index.r

IHA/R/bullrun-data.R
IHA/R/circ.mean.R
IHA/R/flow.duration.r.R
IHA/R/group1.R
IHA/R/group2.R
IHA/R/group3.R
IHA/R/group4.R
IHA/R/group5.R
IHA/R/leap.years.R
IHA/R/maxdate.R
IHA/R/meandiff.R
IHA/R/mindate.R
IHA/R/monotonic.segments.R
IHA/R/pkg-package.R
IHA/R/plot.group1.R
IHA/R/plotDischarge.R
IHA/R/plotGroup1.R
IHA/R/pulse.location.R
IHA/R/pulse.numbers.R
IHA/R/pulses.R
IHA/R/read.flow.r

IHA/R/rezero.year.R
IHA/R/rle.start.R
IHA/R/water.year.R
IHA/R/which.min.zoo.R
IHA/R/yday2.R
IHA/R/years.R
IHA/data

IHA/data/bullrun.rda

IHA/data/willamette.rda

IHA/inst

IHA/inst/unitTests

IHA/inst/unitTests/data

IHA/inst/unitTests/data/Roanoke_River_NC_02080500.usgs

IHA/inst/unitTests/data/roanoke.csv

IHA/inst/unitTests/tests.R

IHA/man

IHA/man/IHA-package.Rd
IHA/man/bullrun.Rd
IHA/man/change.rate.Rd
IHA/man/flow.duration.Rd
IHA/man/group1.Rd
IHA/man/group2.Rd
IHA/man/group2Funs.Rd
IHA/man/group3.Rd
IHA/man/group4.Rd
IHA/man/group5.Rd
IHA/man/internal.Rd
IHA/man/plot.group1.Rd
IHA/man/plotDischarge.Rd
IHA/man/plotGroup1.Rd
IHA/man/read.flow.Rd
IHA/man/runmean.iha.Rd
IHA/man/water.month.Rd
IHA/man/water.year.Rd
IHA/man/which.min.zoo.Rd
IHA/man/yday2.Rd
Questions? Problems? Suggestions? Tweet to @rdrrHQ or email at ian@mutexlabs.com.

All documentation is copyright its authors; we didn't write any of that.