A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

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gretl refers to Gnu Regression, Econometrics and Time-series Library.
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a general rule for making some sort of decision or judgement. Pioneering work in the study of heuristics was done by Amos Tversky and Daniel Kahneman.
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Graphical User Interface development for software, applications or web sites.
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an R package to fit generalized additive mixed models using mgcv (mixed GAM computation vehicle) and lme4 (linear mixed-effects models).
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a transformation that is applied to the correlation coefficient, r, for use in hypothesis testing & constructing confidence intervals.
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a graphical representation of the cumulative distribution function of the empirical probability distribution of wealth.
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Experimental designs that use only a subset of possible factor combinations. Typically, some factors are intentionally confounded w/ some interactions, making the interactions impossible to estimate, …
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A general-purpose programming language designed by IBM in the 1950's for fast numerical computation and scientific computing.
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an R package for creating graphics. It was developed by Hadley Wickham and based on the Grammar of Graphics by Leland Wilkinson.
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The response of an endogenous system to an exogenous shock. This is an important topic in time-series econometrics.
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a method of multivariate data analysis widely used by community ecologists. It provides a way to test statistically whether there is a significant difference betwe…
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CAR refers to the Conditional Auto-regressive models, which is used in spatial statistics.
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for questions about statistical consulting, working with clients and so on.
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singular when its determinant is 0; for such matrices, the inverse is not defined.
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