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What Is A Predictor Variable. The predictor variable is the counterpart to the dependent variable often directly informed or affected by the predictor variable. Predictor variables that are used to predict the dependent series can be variables in the input data set such as regressors and adjustment variables or they can be special variables computed by the system as functions of time such as trend curves intervention variables and seasonal dummies. Metals and elements from atomic emission spectroscopy to inductively coupled plasmamass spectrometry major chemical constituents generally from chromatography volatiles from headspace chromatography spectral data NIR mid-infrared spectroscopy MIR fluorescence NMR microwaves images. A predictor variable in a model where the main point is not to predict the response variable but to explain a relationship between X and Y.
Imagine that a tutor asks 100 students to complete a maths test. A Cross Sample Analysis. If the dependent variable is referred to as an explained variable then the term predictor variable is preferred by some authors for the independent variable. What is Predictor Variable. The goal in linear analysis is to find a set of predictor variables from X1 to Xn in which changes in each predictor variable cause a change in the response variable Y as a multiple of the change in the predictor variable. One variable x is known as the predictor variable.
Control Variable A predictor variable that could be related to or affecting the dependent variable but not really of interest to the research question.
If the dependent variable is referred to as an explained variable then the term predictor variable is preferred by some authors for the independent variable. Variables of interest in an experiment those that are measured or observed are called response or dependent variables. In statistics you you refer to them as predictors. Control Variable A predictor variable that could be related to or affecting the dependent variable but not really of interest to the research question. A variable used in regression to predict another variable. Each set of predictors may be called as an observation.