aqp: trunc-SoilProfileCollection-method – R documentation

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trunc-SoilProfileCollection-method

Truncate a SoilProfileCollection to specified top and bottom depth

Description

trunc is a wrapper method around glomApply for the case when the same top and bottom depth is required for all profiles in a collection. In contrast, glomApply allows for arbitrary functions to be run on each profile to calculate a unique set of depths.

Usage

## S4 method for signature 'SoilProfileCollection'
trunc(x, z1, z2)

Arguments

`x`	A SoilProfileCollection
`z1`	Upper boundary
`z2`	Lower boundary

Value

A SoilProfileCollection truncated to interval [z1, z2]

Examples

# load sample data
data("sp3")

# promote to SPC
depths(sp3) <- id ~ top + bottom

### TRUNCATE all profiles in sp3 to [0,25]

# set up plot parameters
par(mfrow=c(2,1), mar=c(0,0,0,0))

# full profiles
plot(sp3)

# trunc'd profiles
plot(trunc(sp3, 0, 25))

aqp

Algorithms for Quantitative Pedology

v1.29

GPL (>= 3)

Authors

Dylan Beaudette [aut, cre], Pierre Roudier [aut, ctb], Andrew Brown [aut, ctb]

Initial release

2021-04-05