Sha256: 156bb2ac85a4d050cc7c5bd1dfb9a2e7a2b3dd44895fd30297ae5c9dfed1d081
Contents?: true
Size: 662 Bytes
Versions: 15
Compression:
Stored size: 662 Bytes
Contents
module Distribution
# Calculate cdf and inverse cdf for Fisher Distribution.
# Uses Statistics2 module
module F
class << self
# Return the P-value of the corresponding integral with
# k degrees of freedom
#
# Distribution::F.p_value(0.95,1,2)
def p_value(pr,k1,k2)
Statistics2.pfdist(k1,k2, pr)
end
# F cumulative distribution function (cdf).
#
# Returns the integral of F-distribution
# with k1 and k2 degrees of freedom
# over [0, x].
# Distribution::F.cdf(20,3,2)
#
def cdf(x, k1, k2)
Statistics2.fdist(k1, k2,x)
end
end
end
end
Version data entries
15 entries across 15 versions & 1 rubygems