oneRow

<p>A matrix or data frame from which you want one
row.</p>

matrix_or_data_frame

row_index

<p>This simply calls matrix_or_data_frame[row_index,,drop=FALSE] for you
but is shorter and helps you avoid forgetting drop=FALSE.  The need
for drop=FALSE when selecting just one row is explained here:
http://www.hep.by/gnu/r-patched/r-faq/R-FAQ_56.html</p>

Implements various heuristics like Take The Best and
unit-weight linear, which do two-alternative choice: which of
two objects will have a higher criterion?  Also offers functions
to assess performance, e.g. percent correct across all row pairs
in a data set and finding row pairs where models disagree.
New models can be added by implementing a fit and predict function--
see vignette.  Take The Best was first described in: Gigerenzer, G.
& Goldstein, D. G. (1996) <doi:10.1037/0033-295X.103.4.650>.  All
of these heuristics were run on many data sets and analyzed in:
Gigerenzer, G., Todd, P. M., & the ABC Group (1999).
<ISBN:978-0195143812>.

Jean Whitmore

oneRow: Convenience function to get one row from a matrix or data frame.

Description

Usage

Arguments

Value