R package to apply a Chi - Squared test for hydrological frequency analysis
Dependencies: grDevices, ggplot2, reshape2, stats, ggpubr, FAmle, FAdist
Recomendations: actuar package
You can install the development version of hydroCHISQR from GitHub with this R command:
# install.packages("remotes")
remotes::install_github("Alobondo/hydroCHISQR")
library(hydroCHISQR)
| Functions | Description |
|---|---|
hydroCHISQR(df, list_fit, nc, dist_param, alpha, c_test, c_method) |
Apply the Chi - Squared test for hydrological frequency analysis. |
df |
Data frame with observations and distributions adjusted. |
list_fit |
List with distributions and parameters fitted (only used with method 2). |
nc |
Number of classes, default 1 for Sturges, 2 for Scott, 3 for Freedman-Diaconis. |
dist_param |
Number of parameters of the distributions in df. |
alpha |
Significance level, typical 0.05. |
c_test |
Statistical result or plot, default 1 for statistical and 2 for plot. |
c_method |
Chi - Squared test method: 1 (Varas & Bois, 1998) and 2 (Chow, 1949). |
hydroCHISQR::example_2_params Example of frequency analysis result for 2 parameters distributions, with first column as observations.
hydroCHISQR::example_3_params Example of frequency analysis result for 3 parameters distributions, with first column as observations.
hydroCHISQR::fit_2_params Example of 2 parameters distributions fitted.
hydroCHISQR::fit_3_params Example of 3 parameters distributions fitted.
If you find an error in some function, want to report a typo in the documentation or submit a recommendation, you can do it here
Hydrology, R package, Frequency analysis
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