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*This distribution is the continuous probability distribution on the positive real line and it is of the reciprocal of a variable distributed according to the gamma distribution with two parameters α&ß.
*This distribution is the continuous probability distribution on the positive real line and it is of the reciprocal of a variable distributed according to the gamma distribution with two parameters α&ß.
*It is used in Bayesian statistics.
*It is used in Bayesian statistics.
*In GAMMAINV(prob,alpha,beta) , prob is the probability value associated with gamma distribution,alpha is called shape parameter and beta is the rate parameter of the distribution.
*In <math>GAMMAINV(prob,alpha,beta)</math> , prob is the probability value associated with gamma distribution,alpha is called shape parameter and beta is the rate parameter of the distribution.
*.If GAMMADIST(x,alpha,beta,TRUE)=prob, then GAMMAINV(prob,alpha,beta,)=x.
*.If GAMMADIST(x,alpha,beta,TRUE)=prob, then GAMMAINV(prob,alpha,beta,)=x.
*GAMMAINV using the iterating method to find the value of x.suppose the iteration has not converged after 100 searches, then the function gives the error result.
*GAMMAINV using the iterating method to find the value of x.suppose the iteration has not converged after 100 searches, then the function gives the error result.