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Commit 3e958891 by John Myles White

### Add QQPair for use in qq-plots

parent 9e818eb7
 ... ... @@ -71,6 +71,7 @@ export # types Uniform, Weibull, Wishart, QQPair, # methods binaryentropy, # entropy of distribution in bits ccdf, # complementary cdf, i.e. 1 - cdf ... ... @@ -117,6 +118,7 @@ export # types pdf, # probability density function (ContinuousDistribution) pmf, # probability mass function (DiscreteDistribution) quantile, # inverse of cdf (defined for p in (0,1)) qqbuild, # build a paired quantiles data structure for qqplots rand, # random sampler rand!, # replacement random sampler sample, # sample from a source array ... ... @@ -241,4 +243,6 @@ include("functionals.jl") include("conjugates.jl") include("qq.jl") end # module
src/qq.jl 0 → 100644
 immutable QQPair qx::Vector{Float64} qy::Vector{Float64} end function qqbuild(x::Vector, y::Vector) n = min(length(x), length(y)) grid = [0.0:(1 / (n - 1)):1.0] qx = quantile(x, grid) qy = quantile(y, grid) return QQPair(qx, qy) end function qqbuild(x::Vector, d::UnivariateDistribution) n = length(x) grid = [(1 / (n - 1)):(1 / (n - 1)):(1.0 - (1 / (n - 1)))] qx = quantile(x, grid) qd = quantile(d, grid) return QQPair(qx, qd) end function qqbuild(d::UnivariateDistribution, x::Vector) n = length(x) grid = [(1 / (n - 1)):(1 / (n - 1)):(1.0 - (1 / (n - 1)))] qd = quantile(d, grid) qx = quantile(x, grid) return QQPair(qd, qx) end
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