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What is the equivalent R function of the GAMMA.INV function (probability, alpha, beta) of Excel?

I need to find the inverse of the gamma cumulative distribution. I know there is a function GAMMA.INV(probability,alpha,beta)to do this in excel. How can I achieve this in R?

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The R, for the majority of probability distributions, there are four functions, called d, p, q, r, ( e.g., dnorm, pnorm, qnorm, rnorm) giving you density (d), the cumulative distribution function (p, since the result is the probability) and its inverse ( q, since the result is a quantile) and r for a sample from the distribution.

qgamma.

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