<P>请问有谁可以解答 如何用<STRONG>fractal dimension time series data </STRONG>来预测股票价格的走势呢？  无限感激！ </P>
<P>We have been thinking about writing an Excel formula (or function) that calculates Fractal Dimensions - typically for time series data of share prices to forecast future price movements</P>
<P>Share prices are often modelled as Gaussian random walks. Such a model has great theoretical appeal, and is the core of other models, e.g. for measuring risk and pricing options. There is only one problem: capital markets clearly are not Gaussian random walks. There are some arguments that financial markets seem to have a fractal structure. Fractals are characterised by their "fractal dimension" </P>