Sha256: 589b093e1b82452c9c5483cf0c13ee21f4a731b3b22f44bbf96be114fe88b6cf
Contents?: true
Size: 651 Bytes
Versions: 22
Compression:
Stored size: 651 Bytes
Contents
#!/usr/bin/env ruby require("gsl") rng = GSL::Rng.alloc() N = 100 XMAX = 5.0 sigma = 1.0 h = GSL::Histogram.alloc(N, 0, XMAX) for i in 0...10000 do x = rng.rayleigh(sigma) h.increment(x) end sig, amp = h.fit_rayleigh p sig p amp v = GSL::Vector.linspace(0, XMAX, N) val = GSL::Ran::rayleigh_pdf(v, sig) val *= amp GSL::graph(h, [v, val], "-T X -C") h2 = GSL::Histogram.alloc(N, 0, XMAX) for i in 0...10000 do x = rng.gaussian(sigma) y = rng.gaussian(sigma) r = Math.sqrt(x*x + y*y) h2.increment(r) end sig2, amp2 = h2.fit_rayleigh p sig2 p amp2 val2 = GSL::Ran::rayleigh_pdf(v, sig2) val2 *= amp2 GSL::graph(h2, [v, val2], "-T X -C")
Version data entries
22 entries across 22 versions & 4 rubygems