estimating+equation

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• Estimating equations — In statistics, the method of estimating equations is a way of specifying how the parameters of a statistical model should be estimated. This can be thought of as a generalisation of the method of moments. The basis of the method is to have, or to …   Wikipedia

• Structural equation modeling — (SEM) is a statistical technique for testing and estimating causal relations using a combination of statistical data and qualitative causal assumptions. This definition of SEM was articulated by the geneticist Sewall Wright (1921),[1] the… …   Wikipedia

• Schofield equation — The Schofield Equation is a method of estimating the basal metabolic rate (BMR) in calories of adult men and women.It is commonly used by dieticians as a means of estimating the total calorie intake required to maintain current body mass. This… …   Wikipedia

• Drake equation — This article is about Frank Drake s equation. For the Tub Ring music album, see Drake Equation (album). The Drake equation (sometimes called the Green Bank equation or the Green Bank Formula) is an equation used to estimate the number of… …   Wikipedia

• Henderson–Hasselbalch equation — In chemistry, the Henderson–Hasselbalch (often misspelled as Henderson–Hasselbach ) equation describes the derivation of pH as a measure of acidity (using pKa, the acid dissociation constant) in biological and chemical systems. The equation is… …   Wikipedia

• Parametric equation — butterfly curve. In mathematics, parametric equations are a method of defining a curve. A simple kinematical example is when one uses a time parameter to determine the position, velocity, and other information about a body in motion.Abstractly, a …   Wikipedia

• Fourt-Woodlock equation — The Fourt Woodlock equation (sometimes misspelled Fort Woodlock Equation) is a market research tool to describe the total volume of consumer product purchases per year based on households which initially make trial purchases of the product and… …   Wikipedia

• Blaney-Criddle equation — The Blaney Cridle equation is a method for estimating reference crop evapotranspiration : ETo = p ·(0.46· Tmean + 8)Where: ETo is the reference evapotranspiration [mm day 1 ] (monthly) Tmean is the mean daily temperature [°C] given as Tmean =… …   Wikipedia

• Urea reduction ratio — For the Scottish river see: Urr Water The urea reduction ratio (URR), is a dimensionless number used to quantify hemodialysis treatment adequacy.DefinitionURR = frac{U {pre} U {post{U {pre imes 100% Where: * Upre is the pre dialysis urea level *… …   Wikipedia

• Analysis of categorical data — These are statistical procedures which can be used for the analysis of categorical data:* regression * analysis of variance * linear modeling * log linear modeling * logistic regression * repeated measures analysis * simple correspondence… …   Wikipedia

• Redescending M-estimator — Redescending M estimators are very popular Ψ type M estimators which have Ψ functions that are non decreasing near the origin, but decreasing toward 0 far from the origin. Their ψ functions can be chosen to redescend smoothly to zero, so that… …   Wikipedia