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Module:Stat
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Documentation for this module may be created at Module:Stat/doc
local Stat = {}
function Stat.rate(frame)
local a = tonumber(frame.args[1])
local b = tonumber(frame.args[2])
local n = frame.args[3] and tonumber(frame.args[3]) or 1
local f = frame.args["format"] and tonumber(frame.args["format"]) or 2
if a and b and n and f then
return string.format("%." .. f .. "f", 100 * (1 - (1 - a / b) ^ n))
else
return "undefined"
end
end
function Stat.trials(frame)
local a = tonumber(frame.args[1])
local b = tonumber(frame.args[2])
local q = tonumber(frame.args[3])
if a and b and q then
return string.format("%.f", log(1 - q) / log(1 - a / b))
else
return "undefined"
end
end
function Stat.error(frame)
local a = tonumber(frame.args[1])
local b = tonumber(frame.args[2])
local f = frame.args["format"] and tonumber(frame.args["format"]) or 2
local pc = frame.args["percentile"] and tonumber(frame.args["percentile"]) or 1.96
if a and b and f and pc then
local p = a / b
local se = math.sqrt(p * (1 - p) / b)
return string.format("%." .. f .. "f", 100 * pc * se)
else
return "undefined"
end
end
return Stat