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TestDesign

st_attrib-operators

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

Optimal Test Design Approach to Fixed and Adaptive Test Construction

v1.2.2
GPL (>= 2)
Authors
Seung W. Choi [aut, cre] (<https://orcid.org/0000-0003-4777-5420>), Sangdon Lim [aut] (<https://orcid.org/0000-0002-2988-014X>)
Initial release
2021-01-26

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