pd_to_p {bayestestR}  R Documentation 
Convert between Probability of Direction (pd) and pvalue.
Description
Enables a conversion between Probability of Direction (pd) and pvalue.
Usage
pd_to_p(pd, direction = "twosided", verbose = TRUE, ...)
p_to_pd(p, direction = "twosided", ...)
convert_p_to_pd(p, direction = "twosided", ...)
convert_pd_to_p(pd, direction = "twosided", verbose = TRUE, ...)
Arguments
pd 
A Probability of Direction (pd) value (between 0 and 1). 
direction 
What type of pvalue is requested or provided. Can be

verbose 
Toggle off warnings. 
... 
Arguments passed to or from other methods. 
p 
A pvalue. 
Details
Conversion is done using the following equation (see Makowski et al., 2019):
When direction = "twosided"

p = 2 \times (1  p_d)
When direction = "onesided"

p = 1  p_d
Note that this conversion is only valid when the lowest possible values of pd
is 0.5  i.e., when the posterior represents continuous parameter space (see
p_direction). If any pd < 0.5 are detected, they are converted to a p of 1,
and a warning is given.
References
Makowski, D., BenShachar, M. S., Chen, S. H. A., and Lüdecke, D. (2019). Indices of Effect Existence and Significance in the Bayesian Framework. Frontiers in Psychology 2019;10:2767. doi:10.3389/fpsyg.2019.02767
Examples
pd_to_p(pd = 0.95)
pd_to_p(pd = 0.95, direction = "onesided")