loadStAttrib: Load set/stimulus/passage attributes

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

Load set/stimulus/passage attributes

Description

loadStAttrib is a data loading function for creating an st_attrib object. loadStAttrib can read itemset-level attributes from a data.frame or a .csv file.

Usage

loadStAttrib(object, item_attrib)

Arguments

object	itemset-level attributes. Can be a data.frame or the file path of a .csv file. The content should at least include an 'STID' column that matches with itemset IDs (the 'STID' column) of the item_attrib object.
item_attrib	an item_attrib object. Use loadItemAttrib for this.

Value

loadStAttrib returns a st_attrib object.

• data a data.frame containing itemset-level attributes.

See Also

dataset_reading for examples.

Examples

## Read from data.frame:
itempool_reading   <- loadItemPool(itempool_reading_data)
itemattrib_reading <- loadItemAttrib(itemattrib_reading_data, itempool_reading)
stimattrib_reading <- loadStAttrib(stimattrib_reading_data, itemattrib_reading)

## Read from file: write to tempdir() for illustration and clean afterwards
f <- file.path(tempdir(), "stimattrib_reading.csv")
write.csv(stimattrib_reading_data, f, row.names = FALSE)
stimattrib_reading <- loadStAttrib(f, itemattrib_reading)
file.remove(f)

TestDesign documentation built on Sept. 11, 2024, 7:12 p.m.