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Provides a set of exploratory data analysis (EDA) tools for visualizing trends, diagnosing data types for beginner-friendly workflows, and automatically routing to suitable statistical tests or trend exploration models. Includes unified plotting functions for trend lines, grouped boxplots, and comparative scatterplots; automated statistical testing (e.g., t-test, Wilcoxon, ANOVA, Kruskal-Wallis, Tukey, Dunn) with optional effect size calculation; and model-based trend analysis using generalized additive models (GAM) for count data, generalized linear models (GLM) for continuous data, and zero-inflated models (ZIP/ZINB) for count data with potential zero-inflation. Also supports time-window continuity checks, cross-year handling in compare_monthly_cases(), and ARIMA-ready preparation with stationarity diagnostics, ensuring consistent parameter styles for reproducible research and user-friendly workflows.Methods are based on R Core Team (2024) <https://www.R-project.org/>, Wood, S.N.(2017, ISBN:978-1498728331), Hyndman RJ, Khandakar Y (2008) <doi:10.18637/jss.v027.i03>, Simon Jackman (2024) <https://github.com/atahk/pscl/>, Achim Zeileis, Christian Kleiber, Simon Jackman (2008) <doi:10.18637/jss.v027.i08>.
| Version: | 1.0.1 |
| Depends: | R (≥ 3.5.0) |
| Imports: | dplyr, ggplot2 (≥ 3.3.0), lubridate, emmeans, e1071, forecast, MASS, multcomp, tidyselect, tidyr, tseries, car, FSA, ggpubr, rlang, splines, pscl, mgcv |
| Suggests: | testthat (≥ 3.0.0), mockr, knitr, rmarkdown |
| Published: | 2025-09-02 |
| Author: | Gelan Huang [aut, cre] |
| Maintainer: | Gelan Huang <huanggelan97 at icloud.com> |
| BugReports: | https://github.com/GrahnH/trendtestR/issues |
| License: | GPL (≥ 3) |
| URL: | https://github.com/GrahnH/trendtestR |
| NeedsCompilation: | no |
| CRAN checks: | trendtestR results |
| Reference manual: | trendtestR.html , trendtestR.pdf |
| Vignettes: |
trendtestr-intro-eustockmarkets (source) |
| Package source: | trendtestR_1.0.1.tar.gz |
| Windows binaries: | r-devel: not available, r-release: trendtestR_1.0.1.zip, r-oldrel: not available |
| macOS binaries: | r-release (arm64): not available, r-oldrel (arm64): not available, r-release (x86_64): trendtestR_1.0.1.tgz, r-oldrel (x86_64): trendtestR_1.0.1.tgz |
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These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.