Package: xxdi Type: Package Title: An R Package for Evaluating Expertise Indices for Research Strength Assessment Version: 1.26.8 Authors@R: c( person("Nilabhra R", "Das", , "nr.das@yahoo.com", role = c("cre", "aut"), comment = c(ORCID = "0000-0001-8187-0080")), person("Abhirup", "Nandy", , "abhirupnandy.online@gmail.com", role = "aut", comment = c(ORCID = "0000-0001-8618-0847")) ) Maintainer: Nilabhra R Das Description: Institutional performance assessment remains a key challenge to a multitude of stakeholders. Existing indicators such as h-type indicators, g-type indicators, and many others do not reflect expertise of institutions that defines their research portfolio. The package offers functionality to compute and visualise two novel indices: the x-index and the xd-index. The x-index evaluates an institution's scholarly expertise within a specific discipline or field, while the xd-index provides a broader assessment of overall scholarly expertise considering an institution's publication pattern and strengths across coarse thematic areas. These indices offer a nuanced understanding of institutional research capabilities, aiding stakeholders in research management and resource allocation decisions. For further details, see Lathabai, H.H., Nandy, A., and Singh, V.K. (2021) , and Nandy, A., Lathabai, H.H., and Singh, V.K. (2023) . This package provides wrapper functions for computing these exertise indices and their variants, for use with the standard output format of the Web of Science database. License: GPL-3 Depends: R (>= 4.4.2.0) Imports: agop, checkmate, dplyr, ggplot2, stats, tidyr Encoding: UTF-8 RoxygenNote: 7.3.3 LazyData: true Config/pak/sysreqs: libicu-dev Repository: https://nilabhrardas.r-universe.dev Date/Publication: 2026-08-22 00:44:32 UTC RemoteUrl: https://github.com/nilabhrardas/xxdi RemoteRef: HEAD RemoteSha: c4111ec253f22bb50e240e0b23d799357ae96016 NeedsCompilation: no Packaged: 2026-10-21 06:33:23 UTC; root Author: Nilabhra R Das [cre, aut] (ORCID: ), Abhirup Nandy [aut] (ORCID: )