Neutrosophic Analysis of Completely Randomized Designs and Randomized Complete Block Designs R package NeutroBasicDesignsAnalysis version 0.0.1 Provides neutrosophic statistical methods for interval-valued data from completely randomized and randomized complete block designs. Methods include neutrosophic analysis of variance, analysis of covariance, multivariate analysis of variance, pooled analysis of variance, Levene's test, and Aitken transformation. When the lower and upper bounds are equal (crisp data), the methods reduce to their corresponding classical statistical analyses. The basic concept of neutrosophic statistics is based on Smarandache (2014) <https://fs.unm.edu/NeutrosophicStatistics.pdf>, while the statistical analysis procedures implemented in this package are newly developed. Software Imports: MASS, stats Vinaykumar L.N. <vinaymandya123@gmail.com> Comprehensive R Archive Network (CRAN) Neethu R.S. [aut, ctb], Boyina Devi Priyanka [aut, ctb], Cini Varghese [aut, ctb], Susheel Kumar Sarkar [aut, ctb], Mohd Harun [aut, ctb], Vinaykumar L.N. [aut, cre], Anindita Datta [aut, ctb] GPL (>= 3) 2026-08-09 application/tgz https://CRAN.R-project.org/package=NeutroBasicDesignsAnalysis doi:10.32614/CRAN.package.NeutroBasicDesignsAnalysis