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| 127 | +<h1 id="arma1-1-garch1-1">ARMA(1, 1)-GARCH(1, 1)</h1> |
| 128 | +<p><em>ARMA(1, 1)-GARCH(1, 1) model</em></p> |
| 129 | +<p><span style="float:right;"><a href="https://github.com/Techtonique/ahead/ahead/ARMAGARCH/ArmaGarch.py#L46">[source]</a></span></p> |
| 130 | +<h3 id="armagarch">ArmaGarch</h3> |
| 131 | +<pre><code class="language-python">ahead.ARMAGARCH.ArmaGarch.ArmaGarch( |
| 132 | + h=5, level=95, B=250, cl=1, dist="student", seed=123, date_formatting="original" |
| 133 | +) |
| 134 | +</code></pre> |
| 135 | +<p>ARMA(1, 1)-GARCH(1, 1) forecasting (with simulation)</p> |
| 136 | +<p>Parameters:</p> |
| 137 | +<pre><code>h: an integer; |
| 138 | + forecasting horizon |
| 139 | + |
| 140 | +level: an integer; |
| 141 | + Confidence level for prediction intervals |
| 142 | + |
| 143 | +B: an integer; |
| 144 | + number of simulations for R's `stats::arima.sim` |
| 145 | + |
| 146 | +cl: an integer; |
| 147 | + the number of clusters for parallel execution (done in R /!\) |
| 148 | + |
| 149 | +dist: a string; |
| 150 | + distribution of innovations ("student" or "gaussian") |
| 151 | + |
| 152 | +seed: an integer; |
| 153 | + reproducibility seed |
| 154 | + |
| 155 | +date_formatting: a string; |
| 156 | + Currently: |
| 157 | + - "original": yyyy-mm-dd |
| 158 | + - "ms": milliseconds |
| 159 | +</code></pre> |
| 160 | +<p>Attributes:</p> |
| 161 | +<pre><code>fcast_: an object; |
| 162 | + raw result from fitting R's `ahead::armagarchf` through `rpy2` |
| 163 | + |
| 164 | +averages_: a list; |
| 165 | + mean forecast in a list |
| 166 | + |
| 167 | +ranges_: a list; |
| 168 | + lower and upper prediction intervals in a list |
| 169 | + |
| 170 | +output_dates_: a list; |
| 171 | + a list of output dates (associated to forecast) |
| 172 | + |
| 173 | +mean_: a numpy array |
| 174 | + contains series mean forecast as a numpy array |
| 175 | + |
| 176 | +lower_: a numpy array |
| 177 | + contains series lower bound forecast as a numpy array |
| 178 | + |
| 179 | +upper_: a numpy array |
| 180 | + contains series upper bound forecast as a numpy array |
| 181 | + |
| 182 | +result_df_: a data frame; |
| 183 | + contains 3 columns, mean forecast, lower + upper |
| 184 | + prediction intervals, and a date index |
| 185 | + |
| 186 | +sims_: a numpy array |
| 187 | + forecasting simulations |
| 188 | +</code></pre> |
| 189 | +<hr /> |
| 190 | +<p><span style="float:right;"><a href="https://github.com/Techtonique/ahead/ahead/ARMAGARCH/ArmaGarch.py#L135">[source]</a></span></p> |
| 191 | +<h3 id="forecast">forecast</h3> |
| 192 | +<pre><code class="language-python">ArmaGarch.forecast(df) |
| 193 | +</code></pre> |
| 194 | +<p>Forecasting method from <code>ArmaGarch</code> class</p> |
| 195 | +<p>Parameters:</p> |
| 196 | +<pre><code>df: a data frame; |
| 197 | + a data frame containing the input time series (see example) |
| 198 | +</code></pre> |
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