[R] Random Bernoulli sequences with given point-biserialcorrelation?

Greg Snow Greg.Snow at imail.org
Wed Jan 2 23:07:22 CET 2008


My understanding is that point-biserial correlations are measured
between a binary (bernouli) variable and a continuous (interval or ratio
scaled) variable.  Therefore by definition you cannot have a
point-biserial correlation between 2 bernoulli sequences.

If you clarify what you want (maybe give an example or partial example)
we can give better help.

-- 
Gregory (Greg) L. Snow Ph.D.
Statistical Data Center
Intermountain Healthcare
greg.snow at imail.org
(801) 408-8111
 
 

> -----Original Message-----
> From: r-help-bounces at r-project.org 
> [mailto:r-help-bounces at r-project.org] On Behalf Of Michael Kubovy
> Sent: Wednesday, January 02, 2008 2:44 PM
> To: r-help at stat.math.ethz.ch
> Subject: [R] Random Bernoulli sequences with given 
> point-biserialcorrelation?
> 
> Dear R-listers,
> 
> Can someone suggest a method for generating a finite 
> Bernoulli sequence that is likely to have a given 
> point-biserial correlation with an existing Bernoulli sequence?
> _____________________________
> Professor Michael Kubovy
> University of Virginia
> Department of Psychology
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> 
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