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In this paper we present the REQS package which is an interface between the R environment of statistical computing and the EQS software for structural equation modeling. The package consists of three main functions that read EQS script files and import the results into R, call EQS script �files from R, and, �finally, run EQS script �files from R and, again, import the results after EQS computation. The components a user needs are R and EQS. We give a short introduction to R and EQS, elaborate the functionalities of the package, and show how to use the package by means of several examples with special emphasis on simulations.

In this paper we present the REQS package which is an interface between the R environment of statistical computing and the EQS software for structural equation modeling. The package consists of three main functions that read EQS script files and import the results into R, call EQS script �files from R, and, �finally, run EQS script �files from R and, again, import the results after EQS computation. The components a user needs are R and EQS. We give a short introduction to R and EQS, elaborate the functionalities of the package, and show how to use the package by means of several examples with special emphasis on simulations.