# derived variable

## derived variable

In a clinical trial, a new variable created as a function of existing variables and/or by applying mathematical functions.
References in periodicals archive ?
n]) is the formula that gives the derived variable as a function of the fundamental variables [x.
We need to target employment growth as a key variable and not as a derived variable.
Aside from SOS and BUA, the most common derived variable is 'stiffness', a linear combination of SOS and BUA.
The standard model is then re-fit using the derived variable [Z.
From ROC analysis, the derived HPLC variable Vs + Ls - Hs produced the greatest AUC, indicating that this variable was a more powerful discriminator than any other derived variable, including traditional risk markers.
Various asymptotic and polynomial models were examined for each of the dependent variables, in terms of the independent variables N, [DELTA]T, and the derived variable TP.
The first is whether average biomass, which Weller calls a derived ratio, is a derived variable in the sense of Sokal and Rohlf (1981).
The "marginal product" of MED_MD can be derived in several steps: (1) take the partial derivative of W with respect to MED_MD ([Delta]W/[Delta]MED_MD), obtaining an expression that is linear in MED_MD, FELLOWS, and the derived variable SUPPORT/[MD.
In each section the variable name given to the derived variable is provided first, followed by the variable names of the variables used to construct the derived variable.
For example, document transformations for a derived variable with information explaining how the variable was transformed.
His main focus is on the steady state of alternating and direct current networks, because the knowledge of state variables is important in order to determine the value of derived variables such as currents, real and reactive power flows through each element, losses, and the reactive power requirements.
In table 3 the direct and derived variables of AE data were reported.
Site: Follow: Share:
Open / Close