st_attrib-operators: Basic functions for stimulus attribute objects

In TestDesign: Optimal Test Design Approach to Fixed and Adaptive Test Construction

Basic functions for stimulus attribute objects

Description

Basic functions for stimulus attribute objects

Usage

## S4 method for signature 'st_attrib,numeric'
x[i, j, ..., drop = TRUE]

## S4 method for signature 'st_attrib'
dim(x)

## S4 method for signature 'st_attrib'
colnames(x)

## S4 method for signature 'st_attrib'
rownames(x)

## S4 method for signature 'st_attrib'
names(x)

## S4 method for signature 'st_attrib'
as.data.frame(x, row.names = NULL, optional = FALSE, ...)

Arguments

x	a st_attrib object.
i, j	indices to use in subsetting.
...	not used, exists for compatibility.
drop	not used, exists for compatibility.
row.names	not used, exists for compatibility.
optional	not used, exists for compatibility.

Examples

x <- stimattrib_reading
x[1:10]
dim(x)
ncol(x)
nrow(x)
colnames(x)
rownames(x)
names(x)
as.data.frame(x)

TestDesign documentation built on Feb. 16, 2023, 7:19 p.m.