gammaregs: Many Gamma regressions

In Rfast2: A Collection of Efficient and Extremely Fast R Functions II

Many Gamma regressions

Description

Many Gamma regressions.

Usage

gammaregs(y, x, tol = 1e-07, logged = FALSE, parallel = FALSE, maxiters = 100)

Arguments

y	The dependent variable, a numerical variable with non negative numbers for the Gamma and inverse Gaussian regressions. For the Gaussian with a log-link zero values are allowed.
x	A matrix with the indendent variables.
tol	The tolerance value to terminate the Newton-Raphson algorithm.
logged	A boolean variable; it will return the logarithm of the pvalue if set to TRUE.
parallel	Do you want this to be executed in parallel or not. The parallel takes place in C++, therefore you do not have the option to set the number of cores.
maxiters	The maximum number of iterations that can take place in each regression.

Details

Many simple Gamma regressions with a log-link are fitted.

Value

A matrix with the test statistic values and their relevant (logged) p-values.

Author(s)

Stefanos Fafalios and and Michail Tsagris.

R implementation and documentation: Stefanos Fafalios [e-mail] and Michail Tsagris [e-mail].

References

McCullagh, Peter, and John A. Nelder. Generalized linear models. CRC press, USA, 2nd edition, 1989.

Zakariya Yahya Algamal and Intisar Ibrahim Allyas (2017). Prediction of blood lead level in maternal and fetal using generalized linear model. International Journal of Advanced Statistics and Probability, 5(2): 65-69.

See Also

bic.regs, gammareg

Examples

## Not run: 
y <- rgamma(100, 3, 10)
x <- matrix( rnorm( 100 * 10), ncol = 10 )
b <- glm(y ~ x[, 1], family = Gamma(log) )
anova(b, test= "F")
a <- gammaregs(y, x)
x <- NULL

## End(Not run)

Rfast2 documentation built on Aug. 8, 2023, 1:11 a.m.