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lmomco (version 1.7.3)

cdfrice: Cumulative Distribution Function of the Rice Distribution

Description

This function computes the cumulative probability or nonexceedance probability of the Rice distribution given parameters ($\nu$ and $\mathrm{SNR}$) of the distribution computed by parrice. The cumulative distribution function of the distribution is complex and numerical integration of the probability density function is used. $$F(x) = 1 - Q\biggl(\frac{\nu}{\alpha}, \frac{x}{\alpha}\biggr)$$ where $F(x)$ is the nonexceedance probability for quantile $x$, $Q(a,b)$ is the Marcum Q-function, and $\nu/\alpha$ is a form of signal-to-noise ratio $\mathrm{SNR}$. If $\nu=0$, then the Rayleigh distribution results and pdfray is used. The Marcum Q-function is difficult to work with and the lmomco uses the integrate function on pdfrice.

Usage

cdfrice(x, para)

Arguments

x
A real value.
para
The parameters from parrice or similar.

Value

  • Nonexceedance probability ($F$) for $x$.

See Also

pdfrice, quarice, parrice

Examples

Run this code
lmr <- vec2lmom(c(45,0.27), lscale=FALSE)
cdfrice(35,parrice(lmr))

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