aqp (version 1.18)

SPC-utils: Getters, Setters, and Utility Methods for SoilProfileCollection Objects

Description

Getters, Setters, and Utility Methods for SoilProfileCollection Objects

Methods

signature(object = "SoilProfileCollection")

References

http://casoilresource.lawr.ucdavis.edu/

Examples

# NOT RUN {
data(sp1)

## init SoilProfileCollection objects from data.frame
depths(sp1) <- id ~ top + bottom

## depth units
(du <- depth_units(sp1))
depth_units(sp1) <- 'in'
depth_units(sp1) <- du

## get/set metadata on SoilProfileCollection objects
# this is a 1-row data.frame
m <- metadata(sp1)
m$sampler <- 'Dylan'
metadata(sp1) <- m

## extract horizon data from SoilProfileCollection objects as data.frame
h <- horizons(sp1)

# also replace horizon data in SoilProfileCollection objects
# original order and length must be preserved!
horizons(sp1) <- h

# get number of horizons
nrow(sp1)

	
## getting site-level data
site(sp1)

## setting site-level data
# site-level data from horizon-level data (stored in @horizons)
site(sp1) <- ~ group


# make some fake site data, and append from data.frame
# a matching ID column must be present in both @site and new data
# note that IDs should all be character class
d <- data.frame(id=profile_id(sp1), p=runif(n=length(sp1)), stringsAsFactors=FALSE)
site(sp1) <- d


# edit horizon depths
horizonDepths(sp1) <- c('t', 'b')
horizonDepths(sp1)

# edit profile IDs
p <- sprintf("%s-new", profile_id(sp1))
profile_id(sp1) <- p
profile_id(sp1)

# }