R/sirt_digamma1.R
In alexanderrobitzsch/sirt: Supplementary Item Response Theory Models
Defines functions
sirt_digamma1
## File Name: sirt_digamma1.R
## File Version: 0.01
#-- derivative of digamma function
sirt_digamma1 <- function(x, h=1e-3)
{
( digamma(x+h) - digamma(x-h) ) / (2*h)
}
alexanderrobitzsch/sirt documentation built on April 23, 2024, 2:31 p.m.
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Defines functions sirt_digamma1
## File Name: sirt_digamma1.R
## File Version: 0.01
#-- derivative of digamma function
sirt_digamma1 <- function(x, h=1e-3)
{
( digamma(x+h) - digamma(x-h) ) / (2*h)
}
R Package Documentation
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We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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