[{"_1":2,"_85":-5,"_86":-5},"loaderData",{"_3":4,"_13":14},"root",{"_5":6,"_7":8,"_9":10,"_11":12},"isProduction",true,"domain","cran-e.com","version","2.10.1","nonce","NDdmNTQ3NDgtMTQ5NC00YmExLWI2NWUtZjU5M2U1ZTFmZjdi","routes/_page.author.$authorName",{"_15":16,"_17":18,"_40":41,"_28":84},"authorName","Giorgos Athineou","packages",[19,33],{"_20":21,"_30":31},"package",{"_22":23,"_24":25,"_26":27,"_28":29},"id",1047,"name","Compositional","title","Compositional Data Analysis","description","Regression, classification, contour plots, hypothesis testing and fitting of distributions for compositional data are some of the functions included. We further include functions for percentages (or proportions).\nThe standard textbook for such data is John Aitchison's (1986) \"The statistical analysis of compositional data\". Relevant papers include:\na) Tsagris M.T., Preston S. and Wood A.T.A. (2011). \"A data-based power transformation for compositional data\". Fourth International International Workshop on Compositional Data Analysis. <[doi:10.48550/arXiv.1106.1451](https://doi.org/10.48550%2FarXiv.1106.1451)>\nb) Tsagris M. (2014). \"The k-NN algorithm for compositional data: a revised approach with and without zero values present\". Journal of Data Science, 12(3): 519–534. <[doi:10.6339/JDS.201407_12(3).0008](https://doi.org/10.6339%2FJDS.201407_12%283%29.0008)>.\nc) Tsagris M. (2015). \"A novel, divergence based, regression for compositional data\". Proceedings of the 28th Panhellenic Statistics Conference, 15-18 April 2015, Athens, Greece, 430–444. <[doi:10.48550/arXiv.1511.07600](https://doi.org/10.48550%2FarXiv.1511.07600)>.\nd) Tsagris M. (2015). \"Regression analysis with compositional data containing zero values\". Chilean Journal of Statistics, 6(2): 47–57. <[https://soche.cl/chjs/volumes/06/02/Tsagris(2015).pdf](https://soche.cl/chjs/volumes/06/02/Tsagris(2015).pdf)>.\ne) Tsagris M., Preston S. and Wood A.T.A. (2016). \"Improved supervised classification for compositional data using the alpha-transformation\". Journal of Classification, 33(2): 243–261. <[doi:10.1007/s00357-016-9207-5](https://doi.org/10.1007%2Fs00357-016-9207-5)>.\nf) Tsagris M., Preston S. and Wood A.T.A. (2017). \"Nonparametric hypothesis testing for equality of means on the simplex\". Journal of Statistical Computation and Simulation, 87(2): 406–422. <[doi:10.1080/00949655.2016.1216554](https://doi.org/10.1080%2F00949655.2016.1216554)>.\ng) Tsagris M. and Stewart C. (2018). \"A Dirichlet regression model for compositional data with zeros\". Lobachevskii Journal of Mathematics, 39(3): 398–412. <[doi:10.1134/S1995080218030198](https://doi.org/10.1134%2FS1995080218030198)>.\nh) Alenazi A. (2019). \"Regression for compositional data with compositional data as predictor variables with or without zero values\". Journal of Data Science, 17(1): 219–238. <[doi:10.6339/JDS.201901_17(1).0010](https://doi.org/10.6339%2FJDS.201901_17%281%29.0010)>.\ni) Tsagris M. and Stewart C. (2020). \"A folded model for compositional data analysis\". Australian and New Zealand Journal of Statistics, 62(2): 249–277. <[doi:10.1111/anzs.12289](https://doi.org/10.1111%2Fanzs.12289)>.\nj) Alenazi A.A. (2022). \"f-divergence regression models for compositional data\". Pakistan Journal of Statistics and Operation Research, 18(4): 867–882. <[doi:10.18187/pjsor.v18i4.3969](https://doi.org/10.18187%2Fpjsor.v18i4.3969)>.\nk) Tsagris M. and Stewart C. (2022). \"A Review of Flexible Transformations for Modeling Compositional Data\". In Advances and Innovations in Statistics and Data Science, pp. 225–234. <[doi:10.1007/978-3-031-08329-7_10](https://doi.org/10.1007%2F978-3-031-08329-7_10)>.\nl) Alenazi A. (2023). \"A review of compositional data analysis and recent advances\". Communications in Statistics–Theory and Methods, 52(16): 5535–5567. <[doi:10.1080/03610926.2021.2014890](https://doi.org/10.1080%2F03610926.2021.2014890)>.\nm) Tsagris M., Alenazi A. and Stewart C. (2023). \"Flexible non-parametric regression models for compositional response data with zeros\". Statistics and Computing, 33(106). <[doi:10.1007/s11222-023-10277-5](https://doi.org/10.1007%2Fs11222-023-10277-5)>.\nn) Tsagris. M. (2025). \"Constrained least squares simplicial-simplicial regression\". Statistics and Computing, 35(27). <[doi:10.1007/s11222-024-10560-z](https://doi.org/10.1007%2Fs11222-024-10560-z)>.\no) Sevinc V. and Tsagris. M. (2024). \"Energy Based Equality of Distributions Testing for Compositional Data\". <[doi:10.48550/arXiv.2412.05199](https://doi.org/10.48550%2FarXiv.2412.05199)>.","roles",[32],"aut",{"_20":34,"_30":39},{"_22":35,"_24":36,"_26":37,"_28":38},1448,"Directional","A Collection of Functions for Directional Data Analysis","A collection of functions for directional data (including massive data, with millions of observations) analysis. Hypothesis testing, discriminant and regression analysis, MLE of distributions and more are included. The standard textbook for such data is the \"Directional Statistics\" by Mardia, K. V. and Jupp, P. E. (2000). Other references include a) Phillip J. Paine, Simon P. Preston, Michail Tsagris and Andrew T. A. Wood (2018). \"An elliptically symmetric angular Gaussian distribution\". Statistics and Computing 28(3): 689-697. [doi:10.1007/s11222-017-9756-4](https://doi.org/10.1007%2Fs11222-017-9756-4). b) Tsagris M. and Alenazi A. (2019). \"Comparison of discriminant analysis methods on the sphere\". Communications in Statistics: Case Studies, Data Analysis and Applications 5(4):467–491. [doi:10.1080/23737484.2019.1684854](https://doi.org/10.1080%2F23737484.2019.1684854). c) P. J. Paine, S. P. Preston, M. Tsagris and Andrew T. A. Wood (2020). \"Spherical regression models with general covariates and anisotropic errors\". Statistics and Computing 30(1): 153–165. [doi:10.1007/s11222-019-09872-2](https://doi.org/10.1007%2Fs11222-019-09872-2). d) Tsagris M. and Alenazi A. (2024). \"An investigation of hypothesis testing procedures for circular and spherical mean vectors\". Communications in Statistics-Simulation and Computation, 53(3): 1387–1408. [doi:10.1080/03610918.2022.2045499](https://doi.org/10.1080%2F03610918.2022.2045499). e) Zehao Yu and Xianzheng Huang (2024). A new parameterization for elliptically symmetric angular Gaussian distributions of arbitrary dimension. Electronic Journal of Statistics, 18(1): 301–334. [doi:10.1214/23-EJS2210](https://doi.org/10.1214%2F23-EJS2210). f) Tsagris M. and Alzeley O. (2024). \"Circular and spherical projected Cauchy distributions: A Novel Framework for Circular and Directional Data Modeling\". [doi:10.48550/arXiv.2302.02468](https://doi.org/10.48550%2FarXiv.2302.02468). g) Tsagris M. and Papastamoulis P. (2024). \"Directional data analysis using the spherical Cauchy and the Poisson kernel-based distribution\". [doi:10.48550/arXiv.2409.03292](https://doi.org/10.48550%2FarXiv.2409.03292).",[32],"otherAuthors",[42,59,63,67,71,75,78,81],{"_22":43,"_24":44,"_45":-5,"_46":-5,"_47":48,"_49":50,"_51":-5,"_52":53,"_54":-5,"_55":-5,"_56":-5,"_57":-5,"_58":53},5859,"Christos Adam","email","extra","orc_id","0009-0003-3244-7034","orc_link","https://orcid.org/0009-0003-3244-7034","github_id","created_at","2024-11-24T20:49:23.983018+00:00","github_link","unknown_link","website_link","linkedin_link","_last_scraped_at",{"_22":60,"_24":61,"_45":-5,"_46":-5,"_47":-5,"_49":-5,"_51":-5,"_52":62,"_54":-5,"_55":-5,"_56":-5,"_57":-5,"_58":62},2770,"Abdulaziz Alenazi","2024-11-24T20:49:21.105835+00:00",{"_22":64,"_24":65,"_45":-5,"_46":-5,"_47":-5,"_49":-5,"_51":-5,"_52":66,"_54":-5,"_55":-5,"_56":-5,"_57":-5,"_58":66},309,"Michail Tsagris","2024-11-24T20:49:18.832187+00:00",{"_22":68,"_24":69,"_45":70,"_46":-5,"_47":-5,"_49":-5,"_51":-5,"_52":66,"_54":-5,"_55":-5,"_56":-5,"_57":-5,"_58":66},413,"Panagiotis Papastamoulis","papapast@yahoo.gr",{"_22":72,"_24":73,"_45":-5,"_46":-5,"_47":-5,"_49":-5,"_51":-5,"_52":74,"_54":-5,"_55":-5,"_56":-5,"_57":-5,"_58":74},13470,"Zehao Yu","2024-11-24T20:49:29.104201+00:00",{"_22":76,"_24":77,"_45":-5,"_46":-5,"_47":-5,"_49":-5,"_51":-5,"_52":74,"_54":-5,"_55":-5,"_56":-5,"_57":-5,"_58":74},13471,"Anamul Sajib",{"_22":79,"_24":80,"_45":-5,"_46":-5,"_47":-5,"_49":-5,"_51":-5,"_52":74,"_54":-5,"_55":-5,"_56":-5,"_57":-5,"_58":74},13472,"Eli Amson",{"_22":82,"_24":83,"_45":-5,"_46":-5,"_47":-5,"_49":-5,"_51":-5,"_52":74,"_54":-5,"_55":-5,"_56":-5,"_57":-5,"_58":74},13473,"Micah J. Waldstein","Two packages down, and Giorgos Athineou is picking up steam. Just getting started! Giorgos Athineou has joined forces with over 8 authors, making it a true team effort. Imagine all those brainstorming sessions—must've been epic!","actionData","errors"]

Giorgos Athineou

2 Packages

Team