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# {rjd3x13} <a href="https://rjdverse.github.io/rjd3x13/"><img src="man/figures/logo.png" align="right" height="150" style="float:right; height:150px;"/></a>

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{rjd3x13} offers full access to options and outputs of X-13
(`rjd3x13::x13()`), including RegARIMA modelling (`rjd3x13::regarima()`)
and X-11 decomposition (`rjd3x13::x11()`).

A specification can be created with `rjd3x13::regarima_spec()`,
`rjd3x13::x11_spec()` or `rjd3x13::x13_spec()` and can be modified with
the following functions:

- for pre-processing: `rjd3toolkit::set_arima()`,
  `rjd3toolkit::set_automodel()`, `rjd3toolkit::set_basic()`,
  `rjd3toolkit::set_easter()`, `rjd3toolkit::set_estimate()`,
  `rjd3toolkit::set_outlier()`, `rjd3toolkit::set_tradingdays()`,
  `rjd3toolkit::set_transform()`, `rjd3toolkit::add_outlier()`,
  `rjd3toolkit::remove_outlier()`, `rjd3toolkit::add_ramp()`,
  `rjd3toolkit::remove_ramp()`, `rjd3toolkit::add_usrdefvar()`;

- for decomposition: `rjd3x13::set_x11()`;

- for benchmarking: `rjd3toolkit::set_benchmarking()`.

## Installation

Running rjd3 packages requires **Java 21 or higher**. How to set up such
a configuration in R is explained
[here](https://jdemetra-new-documentation.netlify.app/#Rconfig)

**🎉 {rjd3x13} is now available on CRAN! 🎉**

To install it, just launch the following command line:

``` r
install.packages("rjd3x13")
```

To get the current development version of **{rjd3x13}** from
[GitHub](https://github.com/) with:

``` r
# install.packages("remotes")
remotes::install_github("rjdverse/rjd3x13")
```

## Usage

Seasonal adjustment with X13-Arima

``` r
library("rjd3x13")

y <- rjd3toolkit::ABS$X0.2.09.10.M
x13_model <- x13(y)
summary(x13_model$result$preprocessing) # Summary of regarima model
#> Log-transformation: yes 
#> SARIMA model: (2,1,1) (0,1,1)
#> 
#> Coefficients
#>           Estimate Std. Error  T-stat Pr(>|t|)    
#> phi(1)     0.34740    0.06502   5.343 1.53e-07 ***
#> phi(2)     0.21733    0.06000   3.622 0.000329 ***
#> theta(1)  -0.69937    0.05115 -13.672  < 2e-16 ***
#> btheta(1) -0.48038    0.06993  -6.869 2.45e-11 ***
#> ---
#> Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
#> 
#> Regression model:
#>                   Estimate Std. Error T-stat Pr(>|t|)    
#> td               0.0023233  0.0006844  3.395 0.000755 ***
#> easter           0.0520113  0.0084894  6.127 2.14e-09 ***
#> TC (2000-06-01)  0.1590340  0.0288578  5.511 6.38e-08 ***
#> AO (2000-07-01) -0.2900774  0.0400551 -7.242 2.26e-12 ***
#> ---
#> Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
#> Number of observations: 425, Number of effective observations: 412, Number of parameters: 9
#> Loglikelihood: 746.7517, Adjusted loglikelihood: -2120.875
#> Standard error of the regression (ML estimate): 0.03927991 
#> AIC: 4259.75, AICc: 4260.198, BIC: 4295.939

plot(x13_model) # Plot of the final decomposition
```

<img src="man/figures/README-x-13-final-1.png" alt="" style="display: block; margin: auto;" />

## Package Maintenance and contributing

Any contribution is welcome and should be done through pull requests
and/or issues. pull requests should include **updated tests** and
**updated documentation**. If functionality is changed, docstrings
should be added or updated.

## Licensing

The code of this project is licensed under the [European Union Public
Licence
(EUPL)](https://interoperable-europe.ec.europa.eu:443/collection/eupl/eupl-text-eupl-12).
