17 lines
367 B
Matlab
17 lines
367 B
Matlab
function x = qchisq(p,a)
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%QCHISQ The chisquare inverse distribution function
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%
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% x = qchisq(p,DegreesOfFreedom)
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% Anders Holtsberg, 18-11-93
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% Copyright (c) Anders Holtsberg
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if any(any(abs(2*p-1)>1))
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error('A probability should be 0<=p<=1, please!')
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end
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if any(any(a<=0))
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error('DegreesOfFreedom is wrong')
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end
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x = qgamma(p,a*0.5)*2;
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