Finding probability for chi square distribution

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ankush chandrakant
ankush chandrakant le 27 Sep 2018
Réponse apportée : Jeff Miller le 27 Sep 2018
For a random variable X, which is chi square distributed with D degrees of freedom and P proportionality factor, how can we find x using MATLAB such that P(X>x)=0.001?
I have tried using chi2cdf, but could not understand how the command works exactly.

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Jeff Miller
Jeff Miller le 27 Sep 2018
x = chi2inv(1-0.001,D)

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