repl.txt (2286B)
1 2 {{alias}}( [σ] ) 3 Returns a Rayleigh distribution object. 4 5 Parameters 6 ---------- 7 σ: number (optional) 8 Scale parameter. Must be greater than `0`. Default: `1.0`. 9 10 Returns 11 ------- 12 rayleigh: Object 13 Distribution instance. 14 15 rayleigh.sigma: number 16 Scale parameter. If set, the value must be greater than `0`. 17 18 rayleigh.entropy: number 19 Read-only property which returns the differential entropy. 20 21 rayleigh.kurtosis: number 22 Read-only property which returns the excess kurtosis. 23 24 rayleigh.mean: number 25 Read-only property which returns the expected value. 26 27 rayleigh.median: number 28 Read-only property which returns the median. 29 30 rayleigh.mode: number 31 Read-only property which returns the mode. 32 33 rayleigh.skewness: number 34 Read-only property which returns the skewness. 35 36 rayleigh.stdev: number 37 Read-only property which returns the standard deviation. 38 39 rayleigh.variance: number 40 Read-only property which returns the variance. 41 42 rayleigh.cdf: Function 43 Evaluates the cumulative distribution function (CDF). 44 45 rayleigh.logcdf: Function 46 Evaluates the natural logarithm of the cumulative distribution function 47 (CDF). 48 49 rayleigh.logpdf: Function 50 Evaluates the natural logarithm of the probability density function 51 (PDF). 52 53 rayleigh.mgf: Function 54 Evaluates the moment-generating function (MGF). 55 56 rayleigh.pdf: Function 57 Evaluates the probability density function (PDF). 58 59 rayleigh.quantile: Function 60 Evaluates the quantile function at probability `p`. 61 62 Examples 63 -------- 64 > var rayleigh = {{alias}}( 6.0 ); 65 > rayleigh.sigma 66 6.0 67 > rayleigh.entropy 68 ~2.734 69 > rayleigh.kurtosis 70 ~0.245 71 > rayleigh.mean 72 ~7.52 73 > rayleigh.median 74 ~7.064 75 > rayleigh.mode 76 6.0 77 > rayleigh.skewness 78 ~0.631 79 > rayleigh.stdev 80 ~3.931 81 > rayleigh.variance 82 ~15.451 83 > rayleigh.cdf( 1.0 ) 84 ~0.014 85 > rayleigh.logcdf( 1.0 ) 86 ~-4.284 87 > rayleigh.logpdf( 1.5 ) 88 ~-3.209 89 > rayleigh.mgf( -0.5 ) 90 ~-0.91 91 > rayleigh.pdf( 1.5 ) 92 ~0.04 93 > rayleigh.quantile( 0.5 ) 94 ~7.064 95 96 See Also 97 -------- 98