krus96train {catlearn}

Input representation of krus96 for models input-compatible with slpEXIT

Description

Create randomized training blocks for AP krus96, in a format suitable for the slpEXIT model, and other models that use the same input representation format.

Usage

krus96train(blocks = 15, subjs = 56, ctxt = TRUE, seed = 1)

Arguments

blocks

Number of training blocks to generate. Omit this argument to get the same number of blocks (15) as used in krus96.

subjs

Number of simulated subjects to be run.

ctxt

If TRUE, include a context cue (x7) that appears on every trial.

seed

Sets the random seed.

Details

A data frame is produced, with one row for each trial, and with the following columns:

ctrl - Set to 1 (reset model) for trial 1 of each simulated subject, set to zero (normal trial) for all other training trials, and set to 2 for test trials (i.e. those with no feedback).

block - training block

stim - Stimulus code, as described in Kruschke (1996).

x1, x2, ... - symptom representation. Each column represents one symptom, in the order I1, PC1, PR1, I2, PC2, PR2, context. 1 = symptom present, 0 = symptom absent

t1, t2, ... - Disease representation. Each column represents one disease, in the order C1, R1, C2, R2. 1 = disease present. 0 = disease absent.

Although the trial ordering is random, a random seed is used, so multiple calls of this function with the same parameters should produce the same output. This is usually desirable for reproducibility and stability of non-linear optimization. To get a different order, use the seed argument to set a different seed.

This routine was originally developed to support Wills et al. (n.d.).

Value

A data frame, where each row is one trial, and the columns contain model input.

Author(s)

René Schlegelmilch, Andy Wills

References

Kruschke, J.K. (1996). Base rates in category learning. Journal of Experimental Psychology: Learning, Memory, and Cognition, 22, 3-26.

Wills et al. (n.d.). Benchmarks for category learning. Manuscript in preparation.

See Also

krus96