Two R Packages for Sensitivity Analysis in Observational Studies
نویسنده
چکیده
Two R packages for sensitivity analysis in observational studies are described. Package sensitivitymw is for matched pairs with one treated subject and one control, or matched sets with one treated subject and a fixed number, K ≥ 2, of controls. Package sensitivitymv is for matched sets with variable numbers of controls. The packages offer conventional statistics, such as the permutational t-test and M -statistics using Huber’s weights, but they also offer less familiar test statistics that have higher power in sensitivity analyses. The packages provide several tools useful in sensitivity analyses, such as an aid, amplify, to the interpretation of the value of the sensitivity parameter, and a device for combining evidence from several independent sensitivity analyses, truncatedP, for instance, several evidence factors or several subgroups.
منابع مشابه
Meta-Analysis in R Using Package rmeta
Meta-Analysis means a statistical analysis on the results of their findings is to combine a large number of independent studies. Meta-Analysis software is needed to be done for convenience, Statistical Software for Meta-Analysis is available in many statistical packages available in the present study provide software R is for Meta-Analysis. First, a brief description of the Meta-Analysis, Stati...
متن کاملTechnical performance evaluation of ERP packages with two-stage DEA approach
Enterprise resources planning (ERP) systems attract many attentions from industry sector because of their ability to facilitate and integrate the enterprise operations. However, many expenses accompany the implementation of these systems and consecutive changes which doing a precise and comprehensive performance evaluation a necessary part of this process. These evaluations should consider oper...
متن کاملFuzzy decision making in testing hypotheses: An introduction to the packages ``FPV" and ``Fuzzy.p.value" with practical examples
This paper reviews and compares two R packages ``FPV" and ``Fuzzy.p.value".These packages are designed for testing hypotheses in a fuzzy environment using a fuzzy $p$-value based approach.In fact, the packages ``FPV" and ``Fuzzy.p.value" propose some useful functions for testing hypotheses when the data / hypotheses are fuzzy rather than crisp.The proposed methods and function...
متن کاملEosinopenia and Neutrophil to lymphocyte ratio as diagnostic tools in neonatal early onset sepsis -a single center observational study
Background and Objective: Neonatal sepsis is associated with high mortality and has a favourable outcome when recognized and treated in a timely manner. In resource-limited settings, there is a need for an affordable test with a short turnaround time for timely diagnosis of sepsis. The aim of this study was to find out the role of eosinopenia and neutrophil-to-lymphocyte ratio (NLR) in screenin...
متن کاملCalculator for Fuzzy Numbers
This paper has been discussed and reviewed two R packages FuzzyNumbers and Calculator.LR.FNs. These packages have the ability of installation on R software, and in fact they propose some useful instruments and functions to the users for draw and easily using arithmetic operators on LR fuzzy numbers. For the convenience of the readers, the proposed methods and functions have been presen...
متن کامل