repl.txt (1975B)
1 2 {{alias}}( [k] ) 3 Returns a chi-squared distribution object. 4 5 Parameters 6 ---------- 7 k: number (optional) 8 Degrees of freedom. Must be greater than `0`. Default: `1.0`. 9 10 Returns 11 ------- 12 chisquare: Object 13 Distribution instance. 14 15 chisquare.k: number 16 Degrees of freedom. If set, the value must be greater than `0`. 17 18 chisquare.entropy: number 19 Read-only property which returns the differential entropy. 20 21 chisquare.kurtosis: number 22 Read-only property which returns the excess kurtosis. 23 24 chisquare.mean: number 25 Read-only property which returns the expected value. 26 27 chisquare.median: number 28 Read-only property which returns the median. 29 30 chisquare.mgf: Function 31 Evaluates the moment-generating function (MGF). 32 33 chisquare.mode: number 34 Read-only property which returns the mode. 35 36 chisquare.skewness: number 37 Read-only property which returns the skewness. 38 39 chisquare.stdev: number 40 Read-only property which returns the standard deviation. 41 42 chisquare.variance: number 43 Read-only property which returns the variance. 44 45 chisquare.cdf: Function 46 Evaluates the cumulative distribution function (CDF). 47 48 chisquare.pdf: Function 49 Evaluates the probability density function (PDF). 50 51 chisquare.quantile: Function 52 Evaluates the quantile function at probability `p`. 53 54 Examples 55 -------- 56 > var chisquare = {{alias}}( 6.0 ); 57 > chisquare.k 58 6.0 59 > chisquare.entropy 60 ~2.541 61 > chisquare.kurtosis 62 2.0 63 > chisquare.mean 64 6.0 65 > chisquare.median 66 ~5.348 67 > chisquare.mode 68 4.0 69 > chisquare.skewness 70 ~1.155 71 > chisquare.stdev 72 ~3.464 73 > chisquare.variance 74 12.0 75 > chisquare.cdf( 3.0 ) 76 ~0.191 77 > chisquare.mgf( 0.2 ) 78 ~4.63 79 > chisquare.pdf( 1.5 ) 80 ~0.066 81 > chisquare.quantile( 0.5 ) 82 ~5.348 83 84 See Also 85 -------- 86