repl.txt (1444B)
1 2 {{alias}}( x, μ, b ) 3 Evaluates the probability density function (PDF) for a Laplace 4 distribution with scale parameter `b` and location parameter `μ` at a 5 value `x`. 6 7 If provided `NaN` as any argument, the function returns `NaN`. 8 9 If provided `b <= 0`, the function returns `NaN`. 10 11 Parameters 12 ---------- 13 x: number 14 Input value. 15 16 μ: number 17 Location parameter. 18 19 b: number 20 Scale parameter. 21 22 Returns 23 ------- 24 out: number 25 Evaluated PDF. 26 27 Examples 28 -------- 29 > var y = {{alias}}( 2.0, 0.0, 1.0 ) 30 ~0.068 31 > y = {{alias}}( -1.0, 2.0, 3.0 ) 32 ~0.061 33 > y = {{alias}}( 2.5, 2.0, 3.0 ) 34 ~0.141 35 > y = {{alias}}( NaN, 0.0, 1.0 ) 36 NaN 37 > y = {{alias}}( 0.0, NaN, 1.0 ) 38 NaN 39 > y = {{alias}}( 0.0, 0.0, NaN ) 40 NaN 41 // Negative scale parameter: 42 > y = {{alias}}( 2.0, 0.0, -1.0 ) 43 NaN 44 45 46 {{alias}}.factory( μ, b ) 47 Returns a function for evaluating the probability density function (PDF) 48 of a Laplace distribution with scale parameter `b` and location parameter 49 `μ`. 50 51 Parameters 52 ---------- 53 μ: number 54 Location parameter. 55 56 b: number 57 Scale parameter. 58 59 Returns 60 ------- 61 pdf: Function 62 Probability density function (PDF). 63 64 Examples 65 -------- 66 > var myPDF = {{alias}}.factory( 10.0, 2.0 ); 67 > var y = myPDF( 10.0 ) 68 0.25 69 70 See Also 71 -------- 72