subset.rspec {pavo}

Subset rspec, vismodel, and colspace objects

Description

Subsets various object types based on a given vector or grep partial matching of data names.

Usage

## S3 method for class 'rspec'
subset(x, subset, ...)

## S3 method for class 'colspace'
subset(x, subset, ...)

## S3 method for class 'vismodel'
subset(x, subset, ...)

Arguments

x

(required) an object of class rspec, vismodel, or colspace, containing spectra, visual model output or colourspace data to subset.

subset

a string used for partial matching of observations.

...

additional attributes passed to grep. Ignored if subset is logical.

Value

a subsetted object of the same class as the input object.

Note

if more than one value is given to subset, any spectra that matches either condition will be included. It's a union, not an intersect.

Author(s)

Chad Eliason [e-mail]

Examples

data(sicalis)
vis.sicalis <- vismodel(sicalis)
tcs.sicalis <- colspace(vis.sicalis, space = "tcs")

# Subset all 'crown' patches (C in file names)
head(subset(sicalis, "C"))
head(subset(sicalis, c("B", "C")))
head(subset(sicalis, "T", invert = TRUE))
subset(vis.sicalis, "C")
subset(tcs.sicalis, "C")[, seq_len(5)]